US Bridges

N3990 over Creek

PoorPosted for load

Choctaw County, Oklahoma · 3. W 1.6 N of Boswell · Structure no. 113550000000000

Built
1950
75 years old, rebuilt 1989
Condition
Poor
inspected October 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
29 ft
2 main spans
Daily traffic
100
2022 count
Owner
County
County Highway Agency

About this bridge

N3990 over Creek is a wood or timber stringer/multi-beam or girder carrying N3990 over Creek in Choctaw County, Oklahoma. It was built in 1950 and reconstructed in 1989, so it is 75 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 4 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: posted for load restriction.

It carries about 100 vehicles a day, roughly 10% of them trucks, projected to reach 160 by 2042. The structure is 29 ft (8.8 m) long and 16 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesN3990
CrossesCreek
Location3. W 1.6 N of Boswell
RouteCounty Highway N3990
Coordinates34.05011, -95.92068
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating12 US tons
Inventory rating8 US tons

Structure

MaterialWood or Timber
DeckWood or timber
Main spans2
Design loadUnknown
Structure length29 ft (8.8 m)
Longest span18 ft (5.5 m)
Deck width16 ft (4.9 m)
Roadway width16 ft (4.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2022)
Projected traffic160 by 2042
Trucks10%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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$261,000
NavigationNo navigation control on waterway

Frequently asked questions

When was N3990 over Creek built?

It was built in 1950, making it 75 years old in 2025. It was reconstructed in 1989.

What condition is N3990 over 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 October 2024.

How much traffic does N3990 over Creek carry?

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

How long is N3990 over Creek?

The structure is 29 ft (8.8 m) long with a longest span of 18 ft (5.5 m) and a deck 16 ft wide.

Who owns N3990 over Creek?

It is owned by the County Highway Agency.