US Bridges

I-40 Frontage Rd. over Timber Creek Oflow

Fair

Beckham County, Oklahoma · 2.7 MI E I-40 Bus. · Structure no. 017590000000000

Built
1926
99 years old
Condition
Fair
inspected March 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
172 ft
5 main spans
Daily traffic
100
2022 count
Owner
State
State Highway Agency

About this bridge

I-40 Frontage Rd. over Timber Creek Oflow is a steel stringer/multi-beam or girder carrying I-40 Frontage Rd. over Timber Creek Oflow 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.

It carries about 100 vehicles a day, roughly 16% of them trucks, projected to reach 160 by 2042. The structure is 172 ft (52.4 m) long and 21 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 Oflow
Location2.7 MI E I-40 Bus.
RouteU.S. Route 40
CountyBeckham County
StateOklahoma
Coordinates35.3441, -99.58145
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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMarch 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
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating50 US tons
Inventory rating30 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans5
Design loadH 20
Structure length172 ft (52.4 m)
Longest span34 ft (10.4 m)
Deck width21 ft (6.4 m)
Roadway width18 ft (5.5 m)
Vertical clearance over deckUnrestricted

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 statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$3.3 million
NavigationNo navigation control on waterway

Frequently asked questions

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

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

What condition is I-40 Frontage Rd. over Timber Creek Oflow 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 March 2023.

How much traffic does I-40 Frontage Rd. over Timber Creek Oflow carry?

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

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

The structure is 172 ft (52.4 m) long with a longest span of 34 ft (10.4 m) and a deck 21 ft wide.

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

It is owned by the State Highway Agency.