US Bridges

107th Street over Oak Creek

Good

Corson County, South Dakota · 1.0W & 2.0N Mclaughlin · Structure no. 000000016571070

Built
2005
20 years old
Condition
Good
inspected June 2024
Type
Tee Beam
Prestressed Concrete
Length
100 ft
1 main span
Daily traffic
25
2022 count
Owner
County
County Highway Agency

About this bridge

107th Street over Oak Creek is a prestressed concrete tee beam carrying 107th Street over Oak Creek in Corson County, South Dakota. It was built in 2005, so it is 20 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 good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 25 vehicles a day, roughly 9% of them trucks, projected to reach 28 by 2032. The structure is 100 ft (30.5 m) long and 26 ft wide.

Carries107th Street
CrossesOak Creek
Location1.0W & 2.0N Mclaughlin
RouteCounty Highway 0
Coordinates45.84751, -100.8291
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating43.7 US tons
Inventory rating33.2 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20 + Mod
Structure length100 ft (30.5 m)
Longest span96 ft (29.3 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25 (2022)
Projected traffic28 by 2032
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 107th Street over Oak Creek built?

It was built in 2005, making it 20 years old in 2025.

What condition is 107th Street over Oak Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in June 2024.

How much traffic does 107th Street over Oak Creek carry?

About 25 vehicles per day (2022 count), of which roughly 9% are trucks.

How long is 107th Street over Oak Creek?

The structure is 100 ft (30.5 m) long with a longest span of 96 ft (29.3 m) and a deck 26 ft wide.

Who owns 107th Street over Oak Creek?

It is owned by the County Highway Agency.