US Bridges

6918C over Little Beaver Creek

PoorPosted for load

Stephens County, Oklahoma · 8.5 MI W of Duncan · Structure no. 095220000000000

Built
1940
85 years old
Condition
Poor
inspected February 2023
Type
Truss - Thru
Steel
Length
226 ft
1 main span
Daily traffic
210
2022 count
Owner
County
County Highway Agency

About this bridge

6918C over Little Beaver Creek is a steel truss - thru carrying 6918C over Little Beaver Creek in Stephens County, Oklahoma. It was built in 1940, so it is 85 years old, older than the Oklahoma average of 47.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 210 vehicles a day, roughly 15% of them trucks, projected to reach 336 by 2042. The structure is 226 ft (68.8 m) long and 27 ft wide. If it were closed, the detour would be 5 mi (8 km).

Carries6918C
CrossesLittle Beaver Creek
Location8.5 MI W of Duncan
RouteCounty Highway 6913
Coordinates34.49262, -98.1126
Functional classRural Major Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
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 rating38.7 US tons
Inventory rating26.2 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckConcrete, cast-in-place
Main spans1 (+2 approach)
Design loadH 20
Structure length226 ft (68.8 m)
Longest span100 ft (30.5 m)
Deck width27 ft (8.2 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic210 (2022)
Projected traffic336 by 2042
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$761,000
NavigationNo navigation control on waterway

Frequently asked questions

When was 6918C over Little Beaver Creek built?

It was built in 1940, making it 85 years old in 2025.

What condition is 6918C over Little Beaver Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in February 2023.

How much traffic does 6918C over Little Beaver Creek carry?

About 210 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is 6918C over Little Beaver Creek?

The structure is 226 ft (68.8 m) long with a longest span of 100 ft (30.5 m) and a deck 27 ft wide.

Who owns 6918C over Little Beaver Creek?

It is owned by the County Highway Agency.