US Bridges

I-40 Frontage Rd. over Timber Creek

FairPosted for load

Beckham County, Oklahoma · 2.8 Mi.E. I-40 Bus · Structure no. 017430000000000

Built
1926
99 years old
Condition
Fair
inspected January 2023
Type
Truss - Thru
Steel
Length
99 ft
1 main span
Daily traffic
100
2022 count
Owner
State
State Highway Agency

About this bridge

I-40 Frontage Rd. over Timber Creek is a steel truss - thru carrying I-40 Frontage Rd. over Timber Creek in Beckham County, Oklahoma. It was built in 1926, so it is 99 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. Its operating status is: posted for load restriction.

It carries about 100 vehicles a day, roughly 16% of them trucks, projected to reach 160 by 2042. The structure is 99 ft (30.2 m) long and 20 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesI-40 Frontage Rd.
CrossesTimber Creek
Location2.8 Mi.E. I-40 Bus
RouteU.S. Route 40
CountyBeckham County
StateOklahoma
Coordinates35.34449, -99.58041
Functional classRural Minor Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating31.4 US tons
Inventory rating19.5 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length99 ft (30.2 m)
Longest span96 ft (29.3 m)
Deck width20 ft (6.1 m)
Roadway width18 ft (5.5 m)
Vertical clearance over deck15 ft (4.7 m)

Traffic and service

Average daily traffic100 (2022)
Projected traffic160 by 2042
Trucks16%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusEligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.5 million
NavigationNo navigation control on waterway

Frequently asked questions

When was I-40 Frontage Rd. over Timber Creek built?

It was built in 1926, making it 99 years old in 2025.

What condition is I-40 Frontage Rd. over Timber 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 I-40 Frontage Rd. over Timber Creek carry?

About 100 vehicles per day (2022 count), of which roughly 16% are trucks.

How long is I-40 Frontage Rd. over Timber Creek?

The structure is 99 ft (30.2 m) long with a longest span of 96 ft (29.3 m) and a deck 20 ft wide.

Who owns I-40 Frontage Rd. over Timber Creek?

It is owned by the State Highway Agency.