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Every bridge in Custer County, South Dakota

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

94 inventoried bridges, busiest first

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

Custer County, South Dakota, has 94 bridges in the 2025 National Bridge Inventory: 47 rated good, 42 fair, and 5 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
US016 over Ck	1966	10,052	Good
US016 over French Ck	1966	10,052	Fair
US016A over Laughing Water Ck	1964	6,829	Good
SD079 over Battle Ck	1997	6,610	Good
US016 over French Ck	1974	3,709	Fair
US016 over French Ck	1974	3,709	Fair
SD079 over Ck	1957	3,672	Fair
SD079 over Dry Ck	2004	3,672	Good
SD079 over Dry Ck	2004	3,672	Fair
SD079 over Lame Johnny Ck	2004	3,672	Good
SD079N over Beaver Ck	1957	2,289	Fair
SD079N over French Ck	2003	2,289	Fair
SD079S over Beaver Ck	2004	2,289	Fair
SD079S over French Ck	2003	2,289	Fair
US385 over Beaver Ck	1992	2,087	Good
US016A over French Ck	1964	1,978	Good
US016A over French Ck	1964	1,978	Fair
US016A over French Ck	1964	1,978	Fair
US016A over French Ck	1964	1,978	Good
SD079 over Ck	1956	1,836	Good
SD079 over Dry Ck	1957	1,836	Fair
US016A over Grace Coolidge Ck	1988	1,562	Good
US016A over Grace Coolidge Ck	1977	1,562	Fair
US016A over Grace Coolidge Ck	1987	1,562	Good
US016A over Grace Coolidge Ck	1988	1,562	Fair
US016A over Grace Coolidge Ck	1987	1,562	Good
US016A over Grace Coolidge Ck	1927	1,562	Fair
US016A over Grace Coolidge Ck	1987	1,562	Fair
US016A over Little Squaw Ck	1987	1,562	Good
US016 over Lightning Ck	1988	1,518	Good
SD089 over Ck Mickelson Trail	1970	1,218	Fair
SD089 over Dry Run Ck	1970	1,218	Fair
State Park Rd over Center Lake Inlet	1950	1,000	Poor
SD040 over Battle Ck	1974	992	Fair
SD040 over Battle Ck	1986	992	Fair
SD040 over Battle Ck	1974	992	Fair
SD040 over Battle Ck	1986	992	Good
SD036 over Bear Ck	1991	955	Good
SD036 over Grace Coolidge Ck	1989	955	Good
SD036 over Grace Coolidge Ck	1989	955	Good
SD036 over Grace Coolidge Ck	1989	955	Fair
SD036 over Grace Coolidge Ck	1992	955	Good
SD036 over Spokane Ck	1991	955	Good
SD087 over Grace Coolidge Ck	2005	824	Good
SD087 over Grace Coolidge Ck	2005	824	Good
SD087 over Grace Coolidge Ck	2005	824	Good
SD087 over French Ck	1937	700	Fair
Irr Ar SD040 over Battle Ck	2017	677	Good
SD040 over Billover Ck	1968	677	Fair
US016A over Grace Coolidge Ck	1986	625	Good
US016A over Iron Ck	1992	625	Good
SD036EF (cord #11) over Grace Coolidge Ck	2001	570	Good
8TH St In Custer over French Ck	2014	330	Good
Sd Route 87 over Beaver Creek	1929	326	Fair
Sd Route 87 over Sd Route 87	1940	326	Fair
Sd Route 87 over Wash	1956	326	Fair
Hazelrodt Cutoff over French Ck	2017	188	Good
N 2ND St Old HWY79 over Ck	2021	150	Good
E Main St Fas 6488 over Beaver Ck	1971	108	Poor
Riverside Road over Cheyenne Rv	2014	100	Fair
S 11TH Street over French Ck	1973	100	Fair
State Park Rd over Grace Coolidge Creek	1950	100	Poor
State Park Rd over Grace Coolidge Creek	1950	100	Poor
6TH St over French Ck	1994	50	Good
7TH St over French Ck	1994	50	Good
Old Sawmill Road over Mickelson Trail	2009	50	Good
Spring Ck Cutoff over Spring Ck	1986	50	Fair
Spring Place Rd over French Ck	2011	50	Good
State Park Rd over Stockade Lk Spillway	1988	50	Fair
State Park Road over Ck	1940	50	Fair
S Fairburn Road over French Ck	1974	40	Good
Upper French Ck Rd over Ruby Ck	1973	40	Fair
Upper French Ck Rd over Ruby Ck	1973	40	Good
State Park Rd over Stockade Lake Inlet	1997	30	Fair
Fdr 345 over Iron Creek	1958	25	Good
Fdr 345 over Iron Creek	1991	25	Good
Fdr 345 over Iron Creek	1958	25	Good
Fdr 345 over Iron Creek	1954	25	Good
Fdr 345 over Iron Creek	1957	25	Good
Fdr 345 over Iron Creek	1958	25	Good
Fdr 345 over Iron Creek	1956	25	Good
Fdr 345 over Iron Creek	1954	25	Good
Fdr 345 over Iron Creek	1956	25	Good
Hazelrodt Cg+sh over French Creek	1954	25	Good
E French Ck Road over French Ck	1967	18	Fair
E French Ck Road over French Ck	2020	15	Good
Hasselstrom Place over Battle Ck	1982	15	Fair
Bison Lane over French Ck	1974	12	Fair
State Park Rd over Ck	1950	5	Poor
State Park Rd over French Ck	1950	5	Fair
State Park Rd over French Ck	1950	5	Fair
State Park Rd over French Ck	1950	5	Fair
State Park Rd over Grace Coolidge Creek	1950	5	Fair
Irr SD040 over Cheyenne Rv	1994	–	Fair

Source: FHWA National Bridge Inventory, 2025.

Custer 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.