US Bridges

Nfa A526 over Laurel Lake DR / I-24

FairPosted for load

Marion County, Tennessee · .2 MI North of Grundy CO · Structure no. 58I00240005

Built
1966
59 years old
Condition
Fair
inspected July 2024
Type
Tee Beam
Concrete Continuous
Length
250 ft
4 main spans
Daily traffic
590
2020 count
Owner
State
State Highway Agency

About this bridge

Nfa A526 over Laurel Lake DR / I-24 is a concrete continuous tee beam carrying Nfa A526 over Laurel Lake DR / I-24 in Marion County, Tennessee. It was built in 1966, so it is 59 years old, older than the Tennessee average of 47.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 590 vehicles a day, roughly 2% of them trucks, projected to reach 944 by 2040. The structure is 250 ft (76.2 m) long and 29 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesNfa A526
CrossesLaurel Lake DR / I-24
Location.2 MI North of Grundy CO
RouteCounty Highway 526
CountyMarion County
StateTennessee
Coordinates35.23538, -85.83832
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating29.3 US tons
Inventory rating22.5 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadH 15
Structure length250 ft (76.2 m)
Longest span73 ft (22.3 m)
Deck width29 ft (8.7 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic590 (2020)
Projected traffic944 by 2040
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$406,000 (2020 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Nfa A526 over Laurel Lake DR / I-24 built?

It was built in 1966, making it 59 years old in 2025.

What condition is Nfa A526 over Laurel Lake DR / I-24 in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in July 2024.

How much traffic does Nfa A526 over Laurel Lake DR / I-24 carry?

About 590 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa A526 over Laurel Lake DR / I-24?

The structure is 250 ft (76.2 m) long with a longest span of 73 ft (22.3 m) and a deck 29 ft wide.

Who owns Nfa A526 over Laurel Lake DR / I-24?

It is owned by the State Highway Agency.