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Every bridge in Yankton County, South Dakota

Name: Every bridge in Yankton County, South Dakota
Creator: Bridge Report Card
License: https://creativecommons.org/publicdomain/zero/1.0/

99 inventoried bridges, busiest first

United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled August 20, 2026

Yankton County, South Dakota, has 99 bridges in the 2025 National Bridge Inventory: 42 rated good, 44 fair, and 13 poor (as of August 20, 2026).
This index lists every one of them, busiest first; each links to its own condition record.

Bridge	Built	Vehicles/day	Condition
US081 over Marne Ck	1959	16,870	Fair
SD050 over Marne Ck	1971	9,753	Fair
US081 over Missouri Rv	2007	7,755	Fair
SD052 over Ck	1988	6,711	Fair
W 21ST Street over Marne Creek	1973	6,324	Good
Burleigh Street over Marne Creek	1989	4,996	Good
SD050 over Marne Ck	1980	4,096	Good
W 23RD Street over Marne Creek	1976	3,980	Poor
W 15TH Street over Marne Creek	2005	3,820	Fair
US081 N over Beaver Ck	2024	3,664	Good
US081 S over Beaver Ck	2024	3,606	Good
US081 over James Rv	2000	3,545	Good
SD050 E over James Rv	1985	2,857	Good
SD050 W over James Rv	1976	2,857	Fair
Walnut Street over Marne Creek	1999	2,700	Good
SD052 over Ck	1959	2,539	Fair
SD052 over Ck	1959	2,539	Fair
SD052 over Ck	2005	2,539	Good
44367 309TH Street over James River	1952	2,250	Fair
SD046 over Turkey Ck	2023	2,177	Good
Whiting Drive over Unnamed Creek	1997	1,440	Good
SD046 over Clay Ck	2023	1,437	Good
SD046 over Mud Ck	2022	1,437	Good
Pine Street over Marne Ck	2018	1,089	Good
Shore Drive over Gavins Point Powerhouse	1954	1,029	Fair
Shore Drive over Gavins Point Spillway	1956	1,029	Fair
Cedar Street over Marne Creek	1978	969	Poor
SD046 over James Rv	2002	762	Good
30690 451 Ave over Clay Creek	2019	655	Good
30720 451 Ave over Drainage Ditch	2016	655	Good
Green Street over Marne Creek	2008	500	Good
Kellen Gross Dr over Unnamed Trib to Marne Ck	1993	500	Good
45108 Bluff Road over Turkey Creek	1956	400	Fair
30680 435TH Avenue over Marne Creek	2020	366	Good
44930 305 St over Clay Creek Ditch	2016	345	Good
Locust Street over Marne Creek	1984	343	Fair
29280 431ST Avenue over James River	1959	315	Poor
30330 430TH Avenue over Beaver Creek	1949	300	Fair
44140 303RD Street over James River	1962	244	Fair
30130 448 Ave over Clay Creek	1996	198	Good
43960 304TH Street over Beaver Creek	1949	195	Fair
30650 448 Ave. over Drainage Ditch	2016	173	Good
29540 444TH Ave over Clay Creek	2012	162	Good
30690 433RD Avenue over Beaver Creek	1940	150	Fair
30230 435TH Avenue over Beaver Creek	1956	149	Fair
44780 305TH Street over Unnamed Creek	1985	140	Fair
42920 304TH Street over Beaver Creek	1940	125	Fair
30430 446TH Avenue over Unnamed Creek	1941	100	Poor
43240 Stone Chruch over Trib. to James River	2021	100	Good
43410 Stone Church over Trib. to James River	1935	100	Fair
29260 448 Ave over Turkey Creek	2022	98	Good
44890 294 St over Turkey Creek	2022	95	Good
44970 294 St over Drainage Ditch	2017	93	Good
Capitol Street over Marne Creek	1989	89	Fair
44950 292 St over Drainage Ditch	2017	85	Good
30540 SW Jim River over Beaver Creek	1970	80	Fair
44790 292 St over Turkey Creek	1991	80	Fair
29590 436TH Avenue over James River	1957	78	Fair
44370 295TH Street over Clay Creek	1987	75	Fair
44930 295 St over Turkey Creek	1991	75	Poor
44960 296 St over Turkey Creek	1979	75	Poor
30150 433RD Avenue over Beaver Creek	1963	65	Fair
43780 Beaver Lake over Beaver Creek	2013	60	Good
45120 301 St over Turkey Creek	1970	60	Fair
45130 305 St over Turkey Creek	1989	60	Fair
45170 305 St over Trib. to Turkey Creek	1989	60	Fair
44240 293RD Street over Clay Creek	1938	55	Fair
29250 442ND Avenue over Clay Creek	1930	50	Poor
43230 NW Jim River over Trib. to James River	1975	50	Good
44760 302ND Street over Unnamed Creek	1940	50	Fair
44780 301ST Street over Clay Creek	2020	50	Fair
44790 306 St over Unnamed Creek	1989	50	Fair
45060 300TH St over Turkey Creek	2000	50	Good
Douglas Avenue over Marne Creek	1999	50	Good
29370 443RD Avenue over Clay Creek	1990	45	Fair
30280 431ST Avenue over Beaver Creek	1993	45	Fair
30810 437TH Ave over Marne Creek	2016	45	Good
45080 303 St over Turkey Creek	2022	45	Good
45100 304 St over Turkey Creek	1993	45	Fair
45170 313 St over Unnamed Creek	1940	45	Poor
30190 434TH Avenue over Beaver Creek	1988	40	Fair
43180 302ND Street over Beaver Creek	1937	40	Fair
29410 449 Ave over Turkey Creek	1990	33	Fair
29690 450 Ave over Turkey Creek	1987	33	Poor
29710 445TH Avenue over Clay Creek	2019	33	Good
29980 NE Jim River over Mud Creek	2021	33	Good
30010 451 Ave over Turkey Creek	1991	33	Fair
30250 436TH Avenue over Beaver Creek	1992	33	Fair
30730 436TH Avenue over Marne Creek	1935	33	Poor
30780 441ST Avenue over Marne Creek	1964	33	Fair
30800 438TH Ave over Marne Creek	2009	33	Good
30950 439TH Ave over Marne Creek	2002	33	Good
44660 298TH Street over Trib. to Clay Creek	1940	25	Poor
30140 437TH Avenue over Beaver Creek	2006	21	Good
446TH Ave over Clay Creek	2008	20	Good
30680 432ND Avenue over Marne Creek	2023	10	Good
43160 307TH Street over Marne Creek	1930	10	Poor
45090 299 St over Turkey Creek	1940	5	Fair
45190 299 St over Trib. to Turkey Creek	1940	5	Poor

Source: FHWA National Bridge Inventory, 2025.

Yankton County bridge conditions · South Dakota bridges by county.

Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.