US Bridges

IRR N2580 over Creek

FairPosted for load

Caddo County, Oklahoma · 2. W 4.2 N of SH 19 · Structure no. 083650000000000

Built
1940
85 years old, rebuilt 1960
Condition
Fair
inspected February 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
37 ft
1 main span
Daily traffic
50
2022 count
Owner
County
County Highway Agency

About this bridge

IRR N2580 over Creek is a steel stringer/multi-beam or girder carrying IRR N2580 over Creek in Caddo County, Oklahoma. It was built in 1940 and reconstructed in 1960, 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 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 50 vehicles a day, roughly 10% of them trucks, projected to reach 80 by 2042. The structure is 37 ft (11.3 m) long and 20 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesIRR N2580
CrossesCreek
Location2. W 4.2 N of SH 19
RouteCounty Highway N2580
CountyCaddo County
StateOklahoma
Coordinates34.96052, -98.392
Functional classRural Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating16.9 US tons
Inventory rating10.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckWood or timber
Main spans1
Design loadUnknown
Structure length37 ft (11.3 m)
Longest span33 ft (10.1 m)
Deck width20 ft (6.1 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2022)
Projected traffic80 by 2042
Trucks10%
Lanes on structure2
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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$298,000
NavigationNo navigation control on waterway

Frequently asked questions

When was IRR N2580 over Creek built?

It was built in 1940, making it 85 years old in 2025. It was reconstructed in 1960.

What condition is IRR N2580 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 February 2024.

How much traffic does IRR N2580 over Creek carry?

About 50 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is IRR N2580 over Creek?

The structure is 37 ft (11.3 m) long with a longest span of 33 ft (10.1 m) and a deck 20 ft wide.

Who owns IRR N2580 over Creek?

It is owned by the County Highway Agency.