US Bridges

123rd Street over Foot Creek

Poor

Brown County, South Dakota · 6.6W & 3S of Westport · Structure no. 000000007044230

Built
1932
93 years old
Condition
Poor
inspected July 2024
Type
Culvert
Concrete Continuous
Length
21 ft
2 main spans
Daily traffic
35
2022 count
Owner
County
County Highway Agency

About this bridge

123rd Street over Foot Creek is a concrete continuous culvert carrying 123rd Street over Foot Creek in Brown County, South Dakota. It was built in 1932, so it is 93 years old, older than the South Dakota average of 48.9 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 35 vehicles a day, roughly 2% of them trucks, projected to reach 35 by 2032. The structure is 21 ft (6.4 m) long. If it were closed, the detour would be 3.7 mi (6 km).

Carries123rd Street
CrossesFoot Creek
Location6.6W & 3S of Westport
RouteCounty Highway 0
Coordinates45.60537, -98.63599
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Culvert4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating36 US tons
Inventory rating27 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadUnknown
Structure length21 ft (6.4 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic35 (2022)
Projected traffic35 by 2032
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$610,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was 123rd Street over Foot Creek built?

It was built in 1932, making it 93 years old in 2025.

What condition is 123rd Street over Foot Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in July 2024.

How much traffic does 123rd Street over Foot Creek carry?

About 35 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is 123rd Street over Foot Creek?

The structure is 21 ft (6.4 m) long with a longest span of 10 ft (3 m).

Who owns 123rd Street over Foot Creek?

It is owned by the County Highway Agency.