US Bridges

N3510 over Creek

PoorPosted for load

Lincoln County, Oklahoma · 1 E .9 N of Bellmont · Structure no. 103640000000000

Built
1946
79 years old
Condition
Poor
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
24 ft
1 main span
Daily traffic
100
2022 count
Owner
County
County Highway Agency

About this bridge

N3510 over Creek is a steel stringer/multi-beam or girder carrying N3510 over Creek in Lincoln County, Oklahoma. It was built in 1946, so it is 79 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 3 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 24 ft (7.3 m) long and 16 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesN3510
CrossesCreek
Location1 E .9 N of Bellmont
RouteCounty Highway N3510
Coordinates35.47538, -96.75346
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
Deck3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 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 adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating11 US tons
Inventory rating8 US tons

Structure

MaterialSteel
DeckWood or timber
Main spans1 (+1 approach)
Design loadH 10
Structure length24 ft (7.3 m)
Longest span22 ft (6.8 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 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$225,000
NavigationNo navigation control on waterway

Frequently asked questions

When was N3510 over Creek built?

It was built in 1946, making it 79 years old in 2025.

What condition is N3510 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 June 2024.

How much traffic does N3510 over Creek carry?

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

How long is N3510 over Creek?

The structure is 24 ft (7.3 m) long with a longest span of 22 ft (6.8 m) and a deck 16 ft wide.

Who owns N3510 over Creek?

It is owned by the County Highway Agency.