US Bridges

Nfa A031 over Coal Creek

FairPosted for load

Anderson County, Tennessee · E Off SR116 in Briceville · Structure no. 010A0310001

Built
1984
41 years old
Condition
Fair
inspected June 2023
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete
Length
83 ft
1 main span
Daily traffic
530
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A031 over Coal Creek is a prestressed concrete box beam or girders - single or spread carrying Nfa A031 over Coal Creek in Anderson County, Tennessee. It was built in 1984, so it is 41 years old, younger 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 530 vehicles a day, roughly 2% of them trucks, projected to reach 848 by 2041. The structure is 83 ft (25.4 m) long and 25 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesNfa A031
CrossesCoal Creek
LocationE Off SR116 in Briceville
RouteCounty Highway 31
CountyAnderson County
StateTennessee
Coordinates36.18762, -84.18373
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.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating57.5 US tons
Inventory rating25.7 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length83 ft (25.4 m)
Longest span78 ft (23.8 m)
Deck width25 ft (7.7 m)
Roadway width22 ft (6.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic530 (2020)
Projected traffic848 by 2041
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$664,000 (2021 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa A031 over Coal Creek built?

It was built in 1984, making it 41 years old in 2025.

What condition is Nfa A031 over Coal Creek 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 June 2023.

How much traffic does Nfa A031 over Coal Creek carry?

About 530 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa A031 over Coal Creek?

The structure is 83 ft (25.4 m) long with a longest span of 78 ft (23.8 m) and a deck 25 ft wide.

Who owns Nfa A031 over Coal Creek?

It is owned by the County Highway Agency.