US Bridges

142nd Street over Moccasin Creek

Fair

Brown County, South Dakota · 0.2N & 2.8E of Warner · Structure no. 000000007138420

Built
2001
24 years old
Condition
Fair
inspected August 2023
Type
Slab
Concrete Continuous
Length
77 ft
3 main spans
Daily traffic
255
2022 count
Owner
County
County Highway Agency

About this bridge

142nd Street over Moccasin Creek is a concrete continuous slab carrying 142nd Street over Moccasin Creek in Brown County, South Dakota. It was built in 2001, so it is 24 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 fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 255 vehicles a day, roughly 4% of them trucks, projected to reach 270 by 2032. The structure is 77 ft (23.5 m) long and 31 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Carries142nd Street
CrossesMoccasin Creek
Location0.2N & 2.8E of Warner
RouteCounty Highway 6176
Coordinates45.32875, -98.43591
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66.8 US tons
Inventory rating51.5 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length77 ft (23.5 m)
Longest span28 ft (8.4 m)
Deck width31 ft (9.3 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic255 (2022)
Projected traffic270 by 2032
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 142nd Street over Moccasin Creek built?

It was built in 2001, making it 24 years old in 2025.

What condition is 142nd Street over Moccasin Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in August 2023.

How much traffic does 142nd Street over Moccasin Creek carry?

About 255 vehicles per day (2022 count), of which roughly 4% are trucks.

How long is 142nd Street over Moccasin Creek?

The structure is 77 ft (23.5 m) long with a longest span of 28 ft (8.4 m) and a deck 31 ft wide.

Who owns 142nd Street over Moccasin Creek?

It is owned by the County Highway Agency.