US Bridges

IRR E1330 over Tonkawa Creek

Fair

Caddo County, Oklahoma · 1. N 2.7 E of of US 62 · Structure no. 252250000000000

Built
1996
29 years old
Condition
Fair
inspected January 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
60 ft
1 main span
Daily traffic
100
2022 count
Owner
County
County Highway Agency

About this bridge

IRR E1330 over Tonkawa Creek is a steel stringer/multi-beam or girder carrying IRR E1330 over Tonkawa Creek in Caddo County, Oklahoma. It was built in 1996, so it is 29 years old, younger 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 10% of them trucks, projected to reach 160 by 2042. The structure is 60 ft (18.3 m) long and 26 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesIRR E1330
CrossesTonkawa Creek
Location1. N 2.7 E of of US 62
RouteCounty Highway E1330
CountyCaddo County
StateOklahoma
Coordinates35.0867, -98.18626
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
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 inspectionJanuary 2024
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 geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66.1 US tons
Inventory rating39.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length60 ft (18.3 m)
Longest span58 ft (17.8 m)
Deck width26 ft (7.8 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2022)
Projected traffic160 by 2042
Trucks10%
Lanes on structure2
Traffic directionTwo-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$387,000
NavigationNo navigation control on waterway

Frequently asked questions

When was IRR E1330 over Tonkawa Creek built?

It was built in 1996, making it 29 years old in 2025.

What condition is IRR E1330 over Tonkawa 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 2024.

How much traffic does IRR E1330 over Tonkawa Creek carry?

About 100 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is IRR E1330 over Tonkawa Creek?

The structure is 60 ft (18.3 m) long with a longest span of 58 ft (17.8 m) and a deck 26 ft wide.

Who owns IRR E1330 over Tonkawa Creek?

It is owned by the County Highway Agency.