US Bridges

IRR N2520 over East Cache Creek

Fair

Caddo County, Oklahoma · 6E 3.7N of SH58 · Structure no. 276640000000000

Built
2003
22 years old
Condition
Fair
inspected February 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
178 ft
3 main spans
Daily traffic
50
2022 count
Owner
County
County Highway Agency

About this bridge

IRR N2520 over East Cache Creek is a prestressed concrete stringer/multi-beam or girder carrying IRR N2520 over East Cache Creek in Caddo County, Oklahoma. It was built in 2003, so it is 22 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 6 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 50 vehicles a day, roughly 10% of them trucks, projected to reach 80 by 2042. The structure is 178 ft (54.2 m) long and 29 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesIRR N2520
CrossesEast Cache Creek
Location6E 3.7N of SH58
RouteCounty Highway N2520
Coordinates34.96703, -98.49769
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating53.2 US tons
Inventory rating31.9 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length178 ft (54.2 m)
Longest span75 ft (22.9 m)
Deck width29 ft (8.7 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2022)
Projected traffic80 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$1.6 million
NavigationNo navigation control on waterway

Frequently asked questions

When was IRR N2520 over East Cache Creek built?

It was built in 2003, making it 22 years old in 2025.

What condition is IRR N2520 over East Cache 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 N2520 over East Cache Creek carry?

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

How long is IRR N2520 over East Cache Creek?

The structure is 178 ft (54.2 m) long with a longest span of 75 ft (22.9 m) and a deck 29 ft wide.

Who owns IRR N2520 over East Cache Creek?

It is owned by the County Highway Agency.