US Bridges

State HWY 10 over Spring Creek & Reservoir

Fair

Campbell County, South Dakota · 1/2 Mile No. of Pollock · Structure no. CEPMROSD0000016

Built
1961
64 years old
Condition
Fair
inspected September 2021
Type
Culvert
Concrete
Length
84 ft
9 main spans
Daily traffic
129
2019 count
Owner
Federal
Corps of Engineers (Civil)

About this bridge

State HWY 10 over Spring Creek & Reservoir is a concrete culvert carrying State HWY 10 over Spring Creek & Reservoir in Campbell County, South Dakota. It was built in 1961, so it is 64 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 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 129 vehicles a day, roughly 73% of them trucks, projected to reach 250 by 2038. The structure is 84 ft (25.6 m) long and 34 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesState HWY 10
CrossesSpring Creek & Reservoir
Location1/2 Mile No. of Pollock
RouteState Highway 10
CountyCampbell County
StateSouth Dakota
Coordinates45.91197, -100.29583
Functional classRural Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating26.1 US tons
Inventory rating20 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans9
Design loadHS 20
Structure length84 ft (25.6 m)
Longest span8 ft (2.4 m)
Deck width34 ft (10.3 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic129 (2019)
Projected traffic250 by 2038
Trucks73%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCorps of Engineers (Civil)
Maintained byCorps of Engineers (Civil)
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$387,000 (2021 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was State HWY 10 over Spring Creek & Reservoir built?

It was built in 1961, making it 64 years old in 2025.

What condition is State HWY 10 over Spring Creek & Reservoir 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 September 2021.

How much traffic does State HWY 10 over Spring Creek & Reservoir carry?

About 129 vehicles per day (2019 count), of which roughly 73% are trucks.

How long is State HWY 10 over Spring Creek & Reservoir?

The structure is 84 ft (25.6 m) long with a longest span of 8 ft (2.4 m) and a deck 34 ft wide.

Who owns State HWY 10 over Spring Creek & Reservoir?

It is owned by the Corps of Engineers (Civil).