US Bridges

S.H. 70A over Creek

Fair

Marshall County, Oklahoma · 3.03 SE JCT US-70 · Structure no. 036700000000000

Built
1932
93 years old
Condition
Fair
inspected January 2023
Type
Culvert
Concrete
Length
42 ft
3 main spans
Daily traffic
1,300
2022 count
Owner
State
State Highway Agency

About this bridge

S.H. 70A over Creek is a concrete culvert carrying S.H. 70A over Creek in Marshall County, Oklahoma. It was built in 1932, so it is 93 years old, older than the Oklahoma average of 47.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 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 1,300 vehicles a day, roughly 15% of them trucks, projected to reach 2,080 by 2042. The structure is 42 ft (12.8 m) long. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesS.H. 70A
CrossesCreek
Location3.03 SE JCT US-70
RouteState Highway 70A
CountyMarshall County
StateOklahoma
Coordinates33.97684, -96.66931
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJanuary 2023
Inspection intervalevery 24 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
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating38.3 US tons
Inventory rating23 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadH 20
Structure length42 ft (12.8 m)
Longest span14 ft (4.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,300 (2022)
Projected traffic2,080 by 2042
Trucks15%
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

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$644,000
NavigationNo navigation control on waterway

Frequently asked questions

When was S.H. 70A over Creek built?

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

What condition is S.H. 70A over 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 January 2023.

How much traffic does S.H. 70A over Creek carry?

About 1,300 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is S.H. 70A over Creek?

The structure is 42 ft (12.8 m) long with a longest span of 14 ft (4.3 m).

Who owns S.H. 70A over Creek?

It is owned by the State Highway Agency.