US Bridges

N2990 over Pond Creek

PoorClosed to traffic

Grant County, Oklahoma · .7S 6.8W .9N of Lamont · Structure no. 103380000000000

Built
1945
80 years old
Condition
Poor
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
121 ft
6 main spans
Daily traffic
24
2022 count
Owner
County
County Highway Agency

About this bridge

N2990 over Pond Creek is a steel stringer/multi-beam or girder carrying N2990 over Pond Creek in Grant County, Oklahoma. It was built in 1945, so it is 80 years old, older than the Oklahoma average of 47.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 0 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: closed to all traffic.

It carries about 24 vehicles a day, roughly 10% of them trucks, projected to reach 38 by 2042. The structure is 121 ft (37 m) long and 18 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesN2990
CrossesPond Creek
Location.7S 6.8W .9N of Lamont
RouteCounty Highway N2990
Coordinates36.69333, -97.67833
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck0 FailedOut of service and beyond corrective action.
Superstructure0 FailedOut of service and beyond corrective action.
Substructure0 FailedOut of service and beyond corrective action.
Channel and channel protection3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusClosed to all traffic
ScourFoundations stable; scour above top of footing
Structural evaluation0: Immediate repair necessary to put back in service
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating0 US tons
Inventory rating0 US tons

Structure

MaterialSteel
DeckWood or timber
Main spans6
Design loadH 10
Structure length121 ft (37 m)
Longest span28 ft (8.5 m)
Deck width18 ft (5.6 m)
Roadway width17 ft (5.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic24 (2022)
Projected traffic38 by 2042
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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$564,000
NavigationNo navigation control on waterway

Frequently asked questions

When was N2990 over Pond Creek built?

It was built in 1945, making it 80 years old in 2025.

What condition is N2990 over Pond Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in May 2023.

How much traffic does N2990 over Pond Creek carry?

About 24 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is N2990 over Pond Creek?

The structure is 121 ft (37 m) long with a longest span of 28 ft (8.5 m) and a deck 18 ft wide.

Who owns N2990 over Pond Creek?

It is owned by the County Highway Agency.