US Bridges

1132C/ N4570 over Pumpkin Creek

Good

Cherokee County, Oklahoma · 2.7 MI N of US 62 · Structure no. 214880000000000

Built
1987
38 years old
Condition
Good
inspected August 2023
Type
Tee Beam
Prestressed Concrete
Length
45 ft
1 main span
Daily traffic
390
2022 count
Owner
County
County Highway Agency

About this bridge

1132C/ N4570 over Pumpkin Creek is a prestressed concrete tee beam carrying 1132C/ N4570 over Pumpkin Creek in Cherokee County, Oklahoma. It was built in 1987, so it is 38 years old, younger than the Oklahoma average of 47.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 390 vehicles a day, roughly 15% of them trucks, projected to reach 624 by 2042. The structure is 45 ft (13.7 m) long and 28 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

Open in Google Maps
Carries1132C/ N4570
CrossesPumpkin Creek
Location2.7 MI N of US 62
RouteCounty Highway 1132C
CountyCherokee County
StateOklahoma
Coordinates35.96585, -94.8679
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating37.4 US tons
Inventory rating22.5 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length45 ft (13.7 m)
Longest span40 ft (12.2 m)
Deck width28 ft (8.6 m)
Roadway width27 ft (8.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic390 (2022)
Projected traffic624 by 2042
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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$331,000
NavigationNo navigation control on waterway

Frequently asked questions

When was 1132C/ N4570 over Pumpkin Creek built?

It was built in 1987, making it 38 years old in 2025.

What condition is 1132C/ N4570 over Pumpkin Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in August 2023.

How much traffic does 1132C/ N4570 over Pumpkin Creek carry?

About 390 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is 1132C/ N4570 over Pumpkin Creek?

The structure is 45 ft (13.7 m) long with a longest span of 40 ft (12.2 m) and a deck 28 ft wide.

Who owns 1132C/ N4570 over Pumpkin Creek?

It is owned by the County Highway Agency.