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Every bridge in Mercer County, North Dakota

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

71 inventoried bridges, busiest first

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

Mercer County, North Dakota, has 71 bridges in the 2025 National Bridge Inventory: 24 rated good, 43 fair, and 4 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
Nd Highway 49 over Creek	1967	3,730	Fair
Nd Highway 49 over Knife River	2016	3,400	Good
Nd Highway 49 over Brush Creek	2016	2,745	Good
Nd Highway 49 over Coyote Creek	2016	2,745	Good
Nd Highway 200 over Knife River Overflow	1952	2,300	Fair
Nd Highway 200 over Knife River	1966	2,280	Fair
Nd Highway 200 over Kineman Creek	1966	2,030	Good
Nd Highway 49 over Knife River Coal Road	1963	1,590	Good
Nd Highway 200 over Creek	1966	1,430	Fair
Nd Highway 200 over Alderin Creek	1970	1,120	Fair
Nd Highway 200 over Bnrr Separation	1979	970	Good
Nd Highway 200 over Branch of Spring Creek	1979	970	Fair
Nd Highway 200 over B N R R Sep Oh	1950	790	Fair
Nd Highway 200 over Creek	1955	790	Fair
Nd Highway 200 over Knife River	1950	790	Fair
Nd Highway 200 over Branch of Raymond Creek	1950	780	Poor
Nd Highway 200 over Goodman Creek	1955	630	Fair
58TH Ave SW over Freedom Mine Road	1991	600	Fair
67 1/2 Ave SW over Spring Creek	1971	350	Fair
3rd Ave SW over Antelope Creek	1979	270	Fair
53RD Ave SW over Brady Creek	1967	270	Fair
County Highway 27 over Knife River	1979	270	Fair
3rd AVE over Spring Creek	1979	268	Fair
11th St SW over Otter Creek	1986	200	Good
Irr Bia Rte 22 over Trib to Red Butte Bay	1960	200	Poor
County Road 37 over Knife River	1980	175	Fair
1st ST SW over Raymond Creek	1998	150	Good
County Highway 26 over Creek	1968	144	Fair
9th Avenue NW over Antelope Creek	1983	141	Fair
67th Ave SW over Knife River	1971	110	Fair
58th Ave SW over Knife River	1982	100	Fair
3rd Avenue NW over Antelope Creek	2010	85	Fair
County Highway 18 over Antelope Creek	2000	85	Good
77th Ave SW over Creek	1983	65	Good
County Highway 9 over Antelope Creek	1991	60	Good
15th ST SW over Brush Creek	1994	50	Good
27TH St SW over Creek	1979	50	Fair
CR20 over Brady Creek	1984	50	Poor
Co Rd 20 over Spring Creek	1984	50	Good
64 1/2 Ave SW over Coyote Creek	2011	45	Good
72ND Ave SW over Elm Creek	1969	45	Fair
73RD Ave SW over Elm Creek	1985	45	Fair
74th Ave SW over Spring Creek	1981	45	Fair
CR5 (73RD Ave SW) over Knife River	1976	45	Fair
County Road 11 over Creek	1989	45	Good
3rd St. SW over Creek	1940	35	Fair
67th Ave SW over Coyote Creek	1967	35	Fair
County Road 26 over Goodman Creek	1992	35	Good
2nd St SW over Goodman Creek	2024	34	Good
65th Ave SW over Spring Creek	1969	26	Poor
9th St SW over Spring Creek	1988	25	Good
CR 7 (77TH Ave SW) over Knife River	1987	25	Good
3rd Street SW over Creek	1980	24	Fair
6th St SW over Creek	2014	24	Good
County Highway 25 over Coyote Creek	2011	24	Good
County Highway 9 over Antelope Creek	1997	24	Good
1st St SW over Creek	2007	20	Good
24TH St SW (CR16) over Creek	1963	20	Fair
60TH Ave SW over Brush Creek	1967	20	Fair
65TH Ave SW (CR25) over Coyote Creek	1939	20	Fair
69th Ave SW over Knife River	1971	20	Fair
73rd Ave SW (CR2) over Creek	1935	20	Fair
CR14 (28TH St SW) over Coyote Creek	1994	20	Fair
27TH St. SW over Creek	1958	10	Fair
55th Avenue SW over Antelope Creek	1979	10	Fair
63rd Ave SW over Spring Creek	1979	10	Fair
71ST Ave SW/CR16 over Creek	1978	10	Fair
9th St. SW over Spring Creek	1950	10	Fair
County Highway over Antelope Creek	1948	10	Fair
5TH St SW over Knife River	1917	5	Fair
9th St. SW over Creek	1940	5	Good

Source: FHWA National Bridge Inventory, 2025.

Mercer County bridge conditions · North Dakota bridges by county.

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