US Bridges

N3610 over Little Deep Fork Creek

PoorPosted for load

Creek County, Oklahoma · 4.3S of Shamrock · Structure no. 009720000000000

Built
1920
105 years old
Condition
Poor
inspected September 2024
Type
Truss - Thru
Steel
Length
52 ft
1 main span
Daily traffic
100
2022 count
Owner
County
County Highway Agency

About this bridge

N3610 over Little Deep Fork Creek is a steel truss - thru carrying N3610 over Little Deep Fork Creek in Creek County, Oklahoma. It was built in 1920, so it is 105 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 52 ft (15.8 m) long and 16 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesN3610
CrossesLittle Deep Fork Creek
Location4.3S of Shamrock
RouteCounty Highway N3610
Coordinates35.84702, -96.58354
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.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionSeptember 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry8: Equal to present desirable criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating14 US tons
Inventory rating8.7 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length52 ft (15.8 m)
Longest span51 ft (15.5 m)
Deck width16 ft (4.8 m)
Roadway width16 ft (4.8 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 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 N3610 over Little Deep Fork Creek built?

It was built in 1920, making it 105 years old in 2025.

What condition is N3610 over Little Deep Fork 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 September 2024.

How much traffic does N3610 over Little Deep Fork Creek carry?

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

How long is N3610 over Little Deep Fork Creek?

The structure is 52 ft (15.8 m) long with a longest span of 51 ft (15.5 m) and a deck 16 ft wide.

Who owns N3610 over Little Deep Fork Creek?

It is owned by the County Highway Agency.