Roundabouts Database

29483 Results

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City, State
County
Country 		Intersection
(Lat, Lng) 		Type
Status 		Control Type / Other Control Type Approaches / Driveways / ICD (m) Functional Class /
LaneType 		Year Completed Comments
Henderson, NV
Clark Co.
United States 		Cozy Hill Cir. / Hidden Acres Ln.
(36.01463, -115.09773) 		Other
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		No splitter islands.
Henderson, NV
Clark Co.
United States 		Roaring Brook Dr. / Rising Star Ranch
(35.98762, -115.08586) 		Other
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		No splitter islands.
Enterprise, NV
Clark Co.
United States 		(unknown) / (parking)
(36.00427, -115.27104) 		Other
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Unknown
Delano, MN
Wright Co.
United States 		CSAH 30 / Tiger Dr.
(45.05002, -93.77685) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
1 Driveways
0.0000 		Other (At-Grade)
Single-lane w/ Traversable Central Island 		2021 Entrance to Delano Schools campus. https://www.delano.k12.mn.us/district/communication/in-the-news/blog-post/roundabout-construction-begins-july-6
Delano, MN
Wright Co.
United States 		CR 30 SE / Davidson Ave.
(45.03593, -93.81248) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		2020 Year Completed estimated (2019-2021).
Maple Grove, MN
Hennepin Co.
United States 		80th Ave. N / Shadyview Ln.
(45.09989, -93.50991) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
3 Driveways
38.1000 		Other (At-Grade)
Single-Lane 		2005
Maple Grove, MN
Hennepin Co.
United States 		Arbor Lakes Pkwy. N / Village Way
(45.09695, -93.42891) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
36.5760 		Other (At-Grade)
Single-Lane 		2017 Year Completed estimated (2017-2018).
Maple Grove, MN
Hennepin Co.
United States 		Revere Ln. / Fountains Dr.
(45.09193, -93.41215) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
44.1960 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2019 South and east legs stubbed. Year Completed estimated (2018-2019).
Fridley, MN
Anoka Co.
United States 		University East Service Rd. / Locke Pkwy. NE
(45.09433, -93.26262) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
39.6240 		Other (At-Grade)
Single-Lane 		2019
Pittsburgh, PA
Allegheny Co.
United States 		Parkview Blvd. / Shelburne Ln. / Biltmore Ln.
(40.41694, -79.92038) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
30.4800 		Other (At-Grade)
Single-Lane 		2013 Year Completed estimated (2012-2014).
Coraopolis, PA
Allegheny Co.
United States 		(parking)
(40.46293, -80.17648) 		Other
Unknown 		Unknown
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Unknown
Coraopolis, PA
Allegheny Co.
United States 		GSK Dr. / (parking)
(40.45956, -80.17559) 		Other
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane
Coraopolis, PA
Allegheny Co.
United States 		GSK Dr. / (parking)
(40.46049, -80.17626) 		Other
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane
Joppa, MD
Harford Co.
United States 		Trimble Rd. / Fort Hoyle Rd.
(39.41183, -76.33325) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
30.4800 		Other (At-Grade)
Single-Lane 		2012 Year Completed estimated (2011-2013).
Havre de Grace, MD
Harford Co.
United States 		Bulle Rock Pkwy. / (future road)
(39.54923, -76.12871) 		Unknown
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane
Havre de Grace, MD
Harford Co.
United States 		N Meadows Circle
(39.55272, -76.13636) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Unknown 		No splitter islands.
Kennett Square, PA
Chester Co.
United States 		Victoria Gardens Dr. / Rose Tree Ln. / Arbor Ln.
(39.85731, -75.68897) 		Other
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Unknown 		No splitter islands on two legs.
Shakopee, MN
Scott Co.
United States 		Stagecoach Rd. / Hentges Way
(44.79294, -93.42124) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
54.8640 		Other (At-Grade)
Single-Lane 		2021 https://www.shakopeemn.gov/living-here/street-infrastructure-projects/stagecoach-roundabout
Rossville, MD
Baltimore Co.
United States 		Franklin Square Dr. / Upton Cir.
(39.35121, -76.48864) 		Other
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane
Essex, MD
Baltimore Co.
United States 		Brett Ct.
(39.32297, -76.44461) 		Other
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane
Olney, MD
Montgomery Co.
United States 		Wickham Rd. / Olney Mill Rd. / Dunsford Dr.
(39.16071, -77.09596) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		No splitter islands on three legs.
Gaithersburg, MD
Montgomery Co.
United States 		Hoover Farm Dr. / Holland Meadow Ln.
(39.18129, -77.13125) 		Other
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		No splitter islands.
Gaithersburg, MD
Montgomery Co.
United States 		Hoover Farm Dr. / Brass Bucket Ct.
(39.17775, -77.13018) 		Other
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		No splitter islands.
Boyds, MD
Montgomery Co.
United States 		Crazy Quilt Ct.
(39.16123, -77.30454) 		Other
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane
Hastings, MN
Dakota Co.
United States 		STH 316 (Red Wing Blvd.) / Tuttle Dr.
(44.70766, -92.83693) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
25.9080 		Other (At-Grade)
Single-lane w/ Traversable Central Island 		2021 https://www.hastingsstargazette.com/news/highway-316-in-hastings-to-fully-reopen-by-nov-6/article_f2f45cfe-358f-11ec-a5d8-23c91c675b20.html
Eagan, MN
Dakota Co.
United States 		Diffley Rd. / Daniel Dr. / (school parking)
(44.80460, -93.13650) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
36.5760 		Other (At-Grade)
Single-Lane 		2021 Entrance to Northview Elementary School. https://www.co.dakota.mn.us/Transportation/CurrentConstruction/CR30Braddock/Pages/road-design.aspx
Eagan, MN
Dakota Co.
United States 		Diffley Rd. / Braddock Trl.
(44.80468, -93.13157) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
36.5760 		Other (At-Grade)
Single-Lane 		2021 https://www.co.dakota.mn.us/Transportation/CurrentConstruction/CR30Braddock/Pages/road-design.aspx
Leechburg, PA
Westmoreland Co.
United States 		Moreland Drive Circle
(40.60290, -79.61220) 		Other
Existing 		Unknown
Unknown 		3 Approaches
4 Driveways
0.0000 		Other (At-Grade)
Single-Lane
Leesburg, GA
Lee Co.
United States 		Oakland Pkwy. / (unknown)
(31.64741, -84.24716) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
45.7200 		Other (At-Grade)
Single-Lane 		2015 Year Completed estimated (2014-2016).
Leesburg, GA
Lee Co.
United States 		McIntosh Farms Rd. / Thistletown Dr. / (parking)
(31.63736, -84.24151) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		No splitter islands.
Selbyville, DE
Sussex Co.
United States 		Bayville Shores Dr. / Ocean Vista Dr. / Bay Vista Dr.
(38.47838, -75.08532) 		Other
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		No splitter islands.
Ocean View, DE
Sussex Co.
United States 		Bella Via Way
(38.53396, -75.09929) 		Other
Existing 		Unknown
Unknown 		2 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		Parking along circulatory roadway.
Millsboro, DE
Sussex Co.
United States 		Thomas Jefferson Ave. / Martin Van Buren Dr.
(38.65661, -75.23751) 		Other
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		No splitter islands.
Rehoboth Beach, DE
Sussex Co.
United States 		Wanoma Cir. / Coatue Blvd.
(38.70922, -75.12642) 		Other
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		No splitter islands.
Rehoboth Beach, DE
Sussex Co.
United States 		Coatue Blvd. / Wauwinet Ct. / Sconset Ct.
(38.70921, -75.13040) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		No splitter islands.
Lewes, DE
Sussex Co.
United States 		Grove Estate Rd.
(38.72983, -75.15914) 		Other
Existing 		Unknown
Unknown 		2 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane
Lewes, DE
Sussex Co.
United States 		Deep Valley Blvd. / William Dorsey St.
(38.74128, -75.18701) 		Other
Existing 		Unknown
Unknown 		2 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		No splitter islands.
Lewes, DE
Sussex Co.
United States 		Graves Dr. / Ann Barr St. / Silo Blvd.
(38.74310, -75.18566) 		Other
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane
Lewes, DE
Sussex Co.
United States 		Cadbury Circle
(38.75500, -75.14035) 		Other
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		Parking along circulatory roadway.
Townsend, DE
New Castle Co.
United States 		Robinson Rd. / Goldsborough Dr.
(39.41614, -75.65156) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		No splitter islands on three legs.
Middletown, DE
New Castle Co.
United States 		Neverland Dr. / Whitebird Dr. / Carrick Ct.
(39.47819, -75.63221) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		No splitter islands.
Bear, DE
New Castle Co.
United States 		Primrose Dr.
(39.56431, -75.74240) 		Other
Existing 		Unknown
Unknown 		2 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane
Grove City, PA
Mercer Co.
United States 		Hillcrest Cir. / Slate St.
(41.16693, -80.08439) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		No splitter islands.
Kennett Square, PA
Chester Co.
United States 		Newlin Green Circle
(39.90274, -75.71369) 		Other
Existing 		Unknown
Unknown 		5 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane
Waterloo, IA
Black Hawk Co.
United States 		University Ave. / Fletcher Ave.
(42.49612, -92.36709) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
57.9120 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2021
Buffalo, NY
Erie Co.
United States 		Norfred Dr.
(42.82391, -78.80598) 		Other
Existing 		Unknown
Unknown 		2 Approaches
8 Driveways
0.0000 		Other (At-Grade)
Unknown
Hopkins-Tifft, NY
Erie Co.
United States 		Botanical Dr. / McKinley Pkwy.
(42.82812, -78.82460) 		Other
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		No splitter islands.
Clarence Center, NY
Erie Co.
United States 		Renaldo Circle
(43.00637, -78.65408) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		Pedestrian access to central island.
Latrobe, PA
Westmoreland Co.
United States 		Whitney Ct.
(40.26595, -79.40789) 		Other
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		No splitter islands.
Owings Mills, MD
Baltimore Co.
United States 		(unknown)
(39.39269, -76.78657) 		Other
Existing 		Unknown
Unknown 		2 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane
North Augusta, SC
Aiken Co.
United States 		Railroad Ave. / Center St.
(33.48552, -81.97467) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
32.0040 		Other (At-Grade)
Single-Lane 		2019 Year Completed estimated (2018-2019).
Saratoga Springs, UT
Utah Co.
United States 		W Harvest Hills Blvd. / Harvest Moon Dr.
(40.39852, -111.92490) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Unknown 		No splitter island on side street.
Saratoga Springs, UT
Utah Co.
United States 		W Harvest Moon Dr. / N Providence Dr.
(40.40383, -111.93168) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Unknown 		No splitter islands.
Saratoga Springs, UT
Utah Co.
United States 		W Harvest Moon Dr. / N Nectar Way / Blossom Ct.
(40.40476, -111.92906) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		No splitter islands.
Saratoga Springs, UT
Utah Co.
United States 		W Harvest Hills Blvd. / N Providence Dr.
(40.39881, -111.93223) 		Other
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		No splitter islands on side street.
Saratoga Springs, UT
Utah Co.
United States 		Providence Dr. / Bountiful Way
(40.39754, -111.93085) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		No splitter islands.
Saratoga Springs, UT
Utah Co.
United States 		Providence Dr. / N Bay Leaf Dr. / Peppermint Ct. / Harvest Moon Dr.
(40.39497, -111.92586) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		No splitter islands.
Eagle Mountain, UT
Utah Co.
United States 		Silver Lake Pkwy. / Silver Creek Way / N Ansley Ln.
(40.35653, -111.95246) 		Other
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		No splitter islands.
Eagle Mountain, UT
Utah Co.
United States 		Silver Lake Pkwy. / N Woodhaven Blvd. / Campbell Cir.
(40.35407, -111.94863) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		No splitter islands.
Eagle Mountain, UT
Utah Co.
United States 		E Golden Eagle Rd. / N Kiowa Pkwy.
(40.35008, -111.96673) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		No splitter islands.
Eagle Mountain, UT
Utah Co.
United States 		Ruby Valley Dr. / White Ash Dr.
(40.35960, -111.98924) 		Other
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		No splitter islands on east and west legs.
Eagle Mountain, UT
Utah Co.
United States 		E Rock Creek Rd. / Clear Rock Rd.
(40.36416, -111.97453) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		No splitter islands.
Eagle Mountain, UT
Utah Co.
United States 		N Ridge Loop W / E Ridge Route Rd. / N Cedar Springs Rd. / Quarter Mile Dr.
(40.36434, -111.97944) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		No splitter islands.
Eagle Mountain, UT
Utah Co.
United States 		Turnberry Rd. / N Cunninghill Dr.
(40.36990, -111.97247) 		Other
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		No splitter islands.
North Salt Lake, UT
Davis Co.
United States 		Foxboro Dr. / Fox Hollow Rd.
(40.85340, -111.93866) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		No splitter islands.
North Salt Lake, UT
Davis Co.
United States 		Foxboro Dr. / N Cutler Dr.
(40.85319, -111.93199) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
59.4360 		Other (At-Grade)
Single-Lane 		2005
North Salt Lake, UT
Davis Co.
United States 		N Cutler Dr. / W 900 N
(40.85755, -111.93205) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		No splitter islands.
North Salt Lake, UT
Davis Co.
United States 		Fox Hollow Dr. W / 900 N
(40.85756, -111.93805) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		No splitter islands.
North Salt Lake, UT
Davis Co.
United States 		Fox Hollow Dr. W / W 1100 N
(40.86156, -111.93811) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		No splitter islands.
Woods Cross, UT
Davis Co.
United States 		W 2260 S / S 1950 W
(40.86663, -111.93371) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		No splitter islands.
Woods Cross, UT
Davis Co.
United States 		W 2260 S / S 2040 W
(40.86671, -111.93590) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		No splitter islands.
Woods Cross, UT
Davis Co.
United States 		Mountain View Blvd. / W 1500 S
(40.87467, -111.93385) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		No splitter islands.
Centerville, UT
Davis Co.
United States 		N 1250 W / W Legacy Crossing Blvd.
(40.92015, -111.89691) 		Signalized Roundabout/Circle
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
39.6240 		Other (At-Grade)
Single-Lane 		2012 Year Completed estimated (2011-2013). West leg added 2014-2015.
Layton, UT
Davis Co.
United States 		E Rosewood Ln. / Chapel St. / 500 S
(41.05624, -111.94909) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
30.4800 		Other (At-Grade)
Single-Lane 		2003
Rose Canyon, UT
Salt Lake Co.
United States 		Spring Canyon Dr. / Buck Ridge Dr. / S New Maple Dr.
(40.47981, -112.05539) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		No splitter islands.
Rose Canyon, UT
Salt Lake Co.
United States 		Spring Canyon Dr. / W Windy Ridge Dr.
(40.48589, -112.05562) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		No splitter islands.
Rose Canyon, UT
Salt Lake Co.
United States 		Butterfield Park Way / Spring Canyon Dr.
(40.49171, -112.05652) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		No splitter islands on side street.
Highlands Ranch, CO
Douglas Co.
United States 		Park Central Dr.
(39.55360, -105.00475) 		Other
Existing 		Unknown
Unknown 		5 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		Parking along circulatory roadway. Pedestrian access to central island.
Meridian Inernational Business Center, CO
Douglas Co.
United States 		Tall Oaks St. / Bristleridge Dr.
(39.53104, -104.82951) 		Other
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		No splitter islands.
Murphy Creek, CO
Arapahoe Co.
United States 		E Florida Ave.
(39.68958, -104.70061) 		Other
Existing 		Unknown
Unknown 		2 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane
Littleton, CO
Douglas Co.
United States 		Eagle River St. / Blue River Ave.
(39.50434, -105.03678) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
27.4320 		Other (At-Grade)
Single-Lane 		2017
Littleton, CO
Douglas Co.
United States 		Eagle River St. / Williamsburg St.
(39.50250, -105.03622) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
27.4320 		Other (At-Grade)
Single-Lane 		2017 Year Completed estimated (2017-2018).
Littleton, CO
Douglas Co.
United States 		Middle Fork St. / Garden City Ave.
(39.49889, -105.04348) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
27.4320 		Other (At-Grade)
Single-Lane 		2018 Year Completed estimated (2017-2018).
Littleton, CO
Douglas Co.
United States 		Middle Fork St. / Mt Jackson St.
(39.49687, -105.04533) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
27.4320 		Other (At-Grade)
Single-Lane 		2018 Year Completed estimated (2017-2018).
Whisper Creek, CO
Jefferson Co.
United States 		W 87th Dr. / W 87th Ln.
(39.85326, -105.15802) 		Other
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		No splitter islands.
Whisper Creek, CO
Jefferson Co.
United States 		W 87th Dr. / W 87th Terrace
(39.85449, -105.15278) 		Other
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane
Upper Clover Basin, CO
Boulder Co.
United States 		Mountain Dr. / Boundary Pl.
(40.14560, -105.17468) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
30.4800 		Other (At-Grade)
Single-Lane 		2015 Year Completed estimated (2014-2015).
Lower Clover Basin, CO
Boulder Co.
United States 		Portico Ln. / Portico Pl.
(40.13727, -105.17304) 		Other
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		No splitter islands on two legs.
East Side, CO
Boulder Co.
United States 		E 21st Ave. / Alpine St.
(40.19588, -105.08752) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
30.4800 		Other (At-Grade)
Single-Lane 		2005 Year Completed estimated (2004-2005).
Harvest Park, CO
Larimer Co.
United States 		Old Mill Rd. / County Fair Ln.
(40.51291, -105.02753) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
38.1000 		Other (At-Grade)
Single-Lane 		2003 Painted splitter islands. Year Completed estimated (1999-2005).
Harvest Park, CO
Larimer Co.
United States 		Corbett Dr. / County Fair Ln.
(40.51292, -105.02375) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
38.1000 		Other (At-Grade)
Single-Lane 		2003 Painted splitter islands. Year Completed estimated (1999-2005).
Harvest Park, CO
Larimer Co.
United States 		Corbett Dr. / Rock Creek Dr.
(40.51549, -105.02378) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
38.1000 		Other (At-Grade)
Single-Lane 		2003 Painted splitter islands. Year Completed estimated (1999-2005).
Harvest Park, CO
Larimer Co.
United States 		Rock Creek Dr. / Old Mill Rd.
(40.51549, -105.02751) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
38.1000 		Other (At-Grade)
Single-Lane 		2003 Painted splitter islands. Year Completed estimated (1999-2005).
Elkridge, MD
Howard Co.
United States 		Toomey Ln. / Clements Ln.
(39.20950, -76.71291) 		Other
Existing 		Unknown
Unknown 		2 Approaches
4 Driveways
0.0000 		Other (At-Grade)
Unknown 		No splitter islands.
Ellicott City, MD
Howard Co.
United States 		Hillsborough Rd. / English Morning Ln.
(39.25046, -76.79507) 		Other
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		No splitter islands.
Silver Spring, MD
Montgomery Co.
United States 		Ritchie Ave. / Oswego Ave.
(38.98602, -77.00877) 		Traffic Calming Circle
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		Painted splitter islands.
Washington, DC

United States 		Main Dr. NW
(38.97464, -77.02950) 		Other
Existing 		Unknown
Unknown 		2 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane
Washington, DC

United States 		Main Dr. NW / 14th St. NW
(38.97376, -77.03425) 		Other
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane
Old Town College Park, MD
Prince George's Co.
United States 		52nd Ave. / (unknown)
(38.97496, -76.92410) 		Other
Existing 		Unknown
Unknown 		2 Approaches
1 Driveways
0.0000 		Other (At-Grade)
Unknown
Bowie, MD
Prince George's Co.
United States 		Faircrest Circle
(38.92760, -76.84166) 		Other
Existing 		Unknown
Unknown 		2 Approaches
18 Driveways
0.0000 		Other (At-Grade)
Single-Lane