US Bridges

S.H. 70E over Sassafrass Creek

Fair

Bryan County, Oklahoma · 1.38 E JCT SH-78 · Structure no. 137420000000000

Built
1957
68 years old
Condition
Fair
inspected April 2024
Type
Culvert
Concrete
Length
34 ft
3 main spans
Daily traffic
1,600
2022 count
Owner
State
State Highway Agency

About this bridge

S.H. 70E over Sassafrass Creek is a concrete culvert carrying S.H. 70E over Sassafrass Creek in Bryan County, Oklahoma. It was built in 1957, so it is 68 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 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 1,600 vehicles a day, roughly 15% of them trucks, projected to reach 2,560 by 2042. The structure is 34 ft (10.4 m) long and 32 ft wide. If it were closed, the detour would be 24.9 mi (40 km).

Location

Open in Google Maps
CarriesS.H. 70E
CrossesSassafrass Creek
Location1.38 E JCT SH-78
RouteState Highway 70E
CountyBryan County
StateOklahoma
Coordinates33.92502, -96.34907
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.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation6: Equal to 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 alignment8: Equal to present desirable criteria
Operating rating62.8 US tons
Inventory rating37.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length34 ft (10.4 m)
Longest span10 ft (3 m)
Deck width32 ft (9.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,600 (2022)
Projected traffic2,560 by 2042
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed24.9 mi (40 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
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. 70E over Sassafrass Creek built?

It was built in 1957, making it 68 years old in 2025.

What condition is S.H. 70E over Sassafrass 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 April 2024.

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

About 1,600 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is S.H. 70E over Sassafrass Creek?

The structure is 34 ft (10.4 m) long with a longest span of 10 ft (3 m) and a deck 32 ft wide.

Who owns S.H. 70E over Sassafrass Creek?

It is owned by the State Highway Agency.