US Bridges

Nfa A861 (sa 0618) over Coahulla Creek

Good

Bradley County, Tennessee · 3MI West of SR74 · Structure no. 060A8610003

Built
1989
36 years old
Condition
Good
inspected September 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
119 ft
3 main spans
Daily traffic
180
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A861 (sa 0618) over Coahulla Creek is a prestressed concrete continuous stringer/multi-beam or girder carrying Nfa A861 (sa 0618) over Coahulla Creek in Bradley County, Tennessee. It was built in 1989, so it is 36 years old, younger 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 180 vehicles a day, roughly 2% of them trucks, projected to reach 288 by 2041. The structure is 119 ft (36.3 m) long and 26 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesNfa A861 (sa 0618)
CrossesCoahulla Creek
Location3MI West of SR74
RouteCounty Highway 861
CountyBradley County
StateTennessee
Coordinates35.02803, -84.84707
Functional classRural Local

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating62.5 US tons
Inventory rating35.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length119 ft (36.3 m)
Longest span40 ft (12.2 m)
Deck width26 ft (7.8 m)
Roadway width24 ft (7.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic180 (2020)
Projected traffic288 by 2041
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa A861 (sa 0618) over Coahulla Creek built?

It was built in 1989, making it 36 years old in 2025.

What condition is Nfa A861 (sa 0618) over Coahulla Creek 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 2023.

How much traffic does Nfa A861 (sa 0618) over Coahulla Creek carry?

About 180 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa A861 (sa 0618) over Coahulla Creek?

The structure is 119 ft (36.3 m) long with a longest span of 40 ft (12.2 m) and a deck 26 ft wide.

Who owns Nfa A861 (sa 0618) over Coahulla Creek?

It is owned by the County Highway Agency.