US Bridges

E1120 over Arapaho Creek

GoodPosted for load

Canadian County, Oklahoma · 2W of Union City · Structure no. 319720000000000

Built
2020
5 years old
Condition
Good
inspected August 2024
Type
Culvert
Steel
Length
20 ft
1 main span
Daily traffic
220
2022 count
Owner
County
County Highway Agency

About this bridge

E1120 over Arapaho Creek is a steel culvert carrying E1120 over Arapaho Creek in Canadian County, Oklahoma. It was built in 2020, so it is 5 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. Its operating status is: posted for load restriction.

It carries about 220 vehicles a day, roughly 15% of them trucks, projected to reach 352 by 2042. The structure is 20 ft (6.1 m) long.

CarriesE1120
CrossesArapaho Creek
Location2W of Union City
RouteCounty Highway E1120
Coordinates35.39157, -97.97384
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
Channel and channel protection8 Very GoodNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating52.2 US tons
Inventory rating31.2 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans1
Design loadHS 20
Structure length20 ft (6.1 m)
Longest span20 ft (6.1 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic220 (2022)
Projected traffic352 by 2042
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was E1120 over Arapaho Creek built?

It was built in 2020, making it 5 years old in 2025.

What condition is E1120 over Arapaho 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 2024.

How much traffic does E1120 over Arapaho Creek carry?

About 220 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is E1120 over Arapaho Creek?

The structure is 20 ft (6.1 m) long with a longest span of 20 ft (6.1 m).

Who owns E1120 over Arapaho Creek?

It is owned by the County Highway Agency.