US Bridges

N4482 over Bobtail Creek

PoorPosted for load

Cherokee County, Oklahoma · 3.7S 3.5W of Tahlequah · Structure no. 274900000000000

Built
1998
27 years old
Condition
Poor
inspected August 2023
Type
Slab
Concrete Continuous
Length
26 ft
2 main spans
Daily traffic
50
2022 count
Owner
County
County Highway Agency

About this bridge

N4482 over Bobtail Creek is a concrete continuous slab carrying N4482 over Bobtail Creek in Cherokee 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. Its operating status is: posted for load restriction.

It carries about 50 vehicles a day, roughly 10% of them trucks, projected to reach 80 by 2042. The structure is 26 ft (7.9 m) long and 23 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesN4482
CrossesBobtail Creek
Location3.7S 3.5W of Tahlequah
RouteCounty Highway N4482
Coordinates35.85665, -95.03493
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating31.1 US tons
Inventory rating18.6 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length26 ft (7.9 m)
Longest span10 ft (3 m)
Deck width23 ft (6.9 m)
Roadway width23 ft (6.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2022)
Projected traffic80 by 2042
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 N4482 over Bobtail Creek built?

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

What condition is N4482 over Bobtail 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 August 2023.

How much traffic does N4482 over Bobtail Creek carry?

About 50 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is N4482 over Bobtail Creek?

The structure is 26 ft (7.9 m) long with a longest span of 10 ft (3 m) and a deck 23 ft wide.

Who owns N4482 over Bobtail Creek?

It is owned by the County Highway Agency.