US Bridges

N1990 over Creek

Good

Beckham County, Oklahoma · 1.8 W 2.0 S of I-40 · Structure no. 218490000000000

Built
1988
37 years old
Condition
Good
inspected March 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
40 ft
1 main span
Daily traffic
100
2022 count
Owner
County
County Highway Agency

About this bridge

N1990 over Creek is a steel stringer/multi-beam or girder carrying N1990 over Creek in Beckham County, Oklahoma. It was built in 1988, so it is 37 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 100 vehicles a day, roughly 10% of them trucks, projected to reach 160 by 2042. The structure is 40 ft (12.2 m) long and 25 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesN1990
CrossesCreek
Location1.8 W 2.0 S of I-40
RouteCounty Highway N1990
Coordinates35.35405, -99.43508
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 geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length40 ft (12.2 m)
Longest span39 ft (11.9 m)
Deck width25 ft (7.5 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2022)
Projected traffic160 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$311,000
NavigationNo navigation control on waterway

Frequently asked questions

When was N1990 over Creek built?

It was built in 1988, making it 37 years old in 2025.

What condition is N1990 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 N1990 over Creek carry?

About 100 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is N1990 over Creek?

The structure is 40 ft (12.2 m) long with a longest span of 39 ft (11.9 m) and a deck 25 ft wide.

Who owns N1990 over Creek?

It is owned by the County Highway Agency.