US Bridges

135th Street over Foot Creek

Poor

Brown County, South Dakota · 1W & 2S of Aberdeen · Structure no. 000000007102350

Built
1977
48 years old
Condition
Poor
inspected August 2023
Type
Tee Beam
Prestressed Concrete
Length
60 ft
2 main spans
Daily traffic
98
2022 count
Owner
County
County Highway Agency

About this bridge

135th Street over Foot Creek is a prestressed concrete tee beam carrying 135th Street over Foot Creek in Brown County, South Dakota. It was built in 1977, so it is 48 years old, younger 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 98 vehicles a day, roughly 2% of them trucks, projected to reach 98 by 2032. The structure is 60 ft (18.3 m) long and 39 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Carries135th Street
CrossesFoot Creek
Location1W & 2S of Aberdeen
RouteCounty Highway 6578
Coordinates45.43051, -98.51019
Functional classRural Major Collector

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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry9: Superior to present desirable criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating27 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans2
Design loadHS 20
Structure length60 ft (18.3 m)
Longest span29 ft (8.8 m)
Deck width39 ft (11.8 m)
Roadway width38 ft (11.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic98 (2022)
Projected traffic98 by 2032
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was 135th Street over Foot Creek built?

It was built in 1977, making it 48 years old in 2025.

What condition is 135th 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 August 2023.

How much traffic does 135th Street over Foot Creek carry?

About 98 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is 135th Street over Foot Creek?

The structure is 60 ft (18.3 m) long with a longest span of 29 ft (8.8 m) and a deck 39 ft wide.

Who owns 135th Street over Foot Creek?

It is owned by the County Highway Agency.