US Bridges

N3930 Half Bank RD over Creek

Poor

Atoka County, Oklahoma · 2W of Lane · Structure no. 290910000000000

Built
1998
27 years old
Condition
Poor
inspected January 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
36 ft
1 main span
Daily traffic
24
2022 count
Owner
County
County Highway Agency

About this bridge

N3930 Half Bank RD over Creek is a steel stringer/multi-beam or girder carrying N3930 Half Bank RD over Creek in Atoka County, Oklahoma. It was built in 1998, so it is 27 years old, younger 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.

It carries about 24 vehicles a day, roughly 10% of them trucks, projected to reach 160 by 2042. The structure is 36 ft (10.9 m) long and 15 ft wide. If it were closed, the detour would be 100 mi (161 km).

CarriesN3930 Half Bank RD
CrossesCreek
Location2W of Lane
RouteCounty Highway N3930
Coordinates34.29926, -96.02309
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating75.9 US tons
Inventory rating45 US tons

Structure

MaterialSteel
DeckSteel plate
Main spans1
Design loadH 20
Structure length36 ft (10.9 m)
Longest span33 ft (10.1 m)
Deck width15 ft (4.5 m)
Roadway width15 ft (4.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic24 (2022)
Projected traffic160 by 2042
Trucks10%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed100 mi (161 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 N3930 Half Bank RD over Creek built?

It was built in 1998, making it 27 years old in 2025.

What condition is N3930 Half Bank RD 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 January 2024.

How much traffic does N3930 Half Bank RD over Creek carry?

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

How long is N3930 Half Bank RD over Creek?

The structure is 36 ft (10.9 m) long with a longest span of 33 ft (10.1 m) and a deck 15 ft wide.

Who owns N3930 Half Bank RD over Creek?

It is owned by the County Highway Agency.