US Bridges

Nfa 1882 (sa 6325) over Dunlop Rd. / I24

GoodPosted for load

Montgomery County, Tennessee · 6 MI NE Clarksville · Structure no. 63I00240011

Built
1973
52 years old
Condition
Good
inspected September 2024
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
516 ft
6 main spans
Daily traffic
4,585
2021 count
Owner
State
State Highway Agency

About this bridge

Nfa 1882 (sa 6325) over Dunlop Rd. / I24 is a concrete continuous box beam or girders - multiple carrying Nfa 1882 (sa 6325) over Dunlop Rd. / I24 in Montgomery County, Tennessee. It was built in 1973, so it is 52 years old, older than the Tennessee average of 47.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. Its operating status is: posted for load restriction.

It carries about 4,585 vehicles a day, roughly 3% of them trucks, projected to reach 5,626 by 2042. The structure is 516 ft (157.3 m) long and 32 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

CarriesNfa 1882 (sa 6325)
CrossesDunlop Rd. / I24
Location6 MI NE Clarksville
RouteCounty Highway 6055
Coordinates36.57903, -87.26537
Functional classUrban Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating33.6 US tons
Inventory rating26.1 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans6
Design loadH 20
Structure length516 ft (157.3 m)
Longest span119 ft (36.3 m)
Deck width32 ft (9.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,585 (2021)
Projected traffic5,626 by 2042
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed11.8 mi (19 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$1.9 million (2022 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Nfa 1882 (sa 6325) over Dunlop Rd. / I24 built?

It was built in 1973, making it 52 years old in 2025.

What condition is Nfa 1882 (sa 6325) over Dunlop Rd. / I24 in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in September 2024.

How much traffic does Nfa 1882 (sa 6325) over Dunlop Rd. / I24 carry?

About 4,585 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Nfa 1882 (sa 6325) over Dunlop Rd. / I24?

The structure is 516 ft (157.3 m) long with a longest span of 119 ft (36.3 m) and a deck 32 ft wide.

Who owns Nfa 1882 (sa 6325) over Dunlop Rd. / I24?

It is owned by the State Highway Agency.