US Bridges

N1880 over Creek

Good

Beckham County, Oklahoma · 2.4 N .5 E of Sayre · Structure no. 188010000000000

Built
1975
50 years old, rebuilt 1999
Condition
Good
inspected March 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
26 ft
1 main span
Daily traffic
200
2022 count
Owner
County
County Highway Agency

About this bridge

N1880 over Creek is a steel stringer/multi-beam or girder carrying N1880 over Creek in Beckham County, Oklahoma. It was built in 1975 and reconstructed in 1999, so it is 50 years old, older 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 200 vehicles a day, roughly 10% of them trucks, projected to reach 320 by 2042. The structure is 26 ft (7.9 m) long and 27 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesN1880
CrossesCreek
Location2.4 N .5 E of Sayre
RouteCounty Highway N1880
Coordinates35.32728, -99.62901
Functional classRural Local

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 protection7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating83 US tons
Inventory rating50 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length26 ft (7.9 m)
Longest span25 ft (7.6 m)
Deck width27 ft (8.3 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic200 (2022)
Projected traffic320 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$246,000
NavigationNo navigation control on waterway

Frequently asked questions

When was N1880 over Creek built?

It was built in 1975, making it 50 years old in 2025. It was reconstructed in 1999.

What condition is N1880 over 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 March 2024.

How much traffic does N1880 over Creek carry?

About 200 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is N1880 over Creek?

The structure is 26 ft (7.9 m) long with a longest span of 25 ft (7.6 m) and a deck 27 ft wide.

Who owns N1880 over Creek?

It is owned by the County Highway Agency.