US Bridges

1120C over Clear Creek

Good

Cherokee County, Oklahoma · 2E 2.8N of Lost City · Structure no. 315220000000000

Built
2017
8 years old
Condition
Good
inspected August 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
315 ft
3 main spans
Daily traffic
350
2022 count
Owner
County
County Highway Agency

About this bridge

1120C over Clear Creek is a prestressed concrete stringer/multi-beam or girder carrying 1120C over Clear Creek in Cherokee County, Oklahoma. It was built in 2017, so it is 8 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.

It carries about 350 vehicles a day, roughly 15% of them trucks, projected to reach 560 by 2042. The structure is 315 ft (96 m) long and 26 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Carries1120C
CrossesClear Creek
Location2E 2.8N of Lost City
RouteCounty Highway N4400
Coordinates36.02806, -95.17194
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating96 US tons
Inventory rating58 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length315 ft (96 m)
Longest span105 ft (32 m)
Deck width26 ft (7.9 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic350 (2022)
Projected traffic560 by 2042
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was 1120C over Clear Creek built?

It was built in 2017, making it 8 years old in 2025.

What condition is 1120C over Clear 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 1120C over Clear Creek carry?

About 350 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is 1120C over Clear Creek?

The structure is 315 ft (96 m) long with a longest span of 105 ft (32 m) and a deck 26 ft wide.

Who owns 1120C over Clear Creek?

It is owned by the County Highway Agency.