US Bridges

Nfa A307 over Moore Branch

FairPosted for load

Madison County, Tennessee · 3.9 MI NE JCT SR5&SR197 · Structure no. 570A3070001

Built
1965
60 years old
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
53 ft
3 main spans
Daily traffic
390
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A307 over Moore Branch is a wood or timber stringer/multi-beam or girder carrying Nfa A307 over Moore Branch in Madison County, Tennessee. It was built in 1965, so it is 60 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 390 vehicles a day, roughly 4% of them trucks, projected to reach 624 by 2042. The structure is 53 ft (16.3 m) long and 25 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesNfa A307
CrossesMoore Branch
Location3.9 MI NE JCT SR5&SR197
RouteCounty Highway 307
CountyMadison County
StateTennessee
Coordinates35.54047, -88.69227
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating32.7 US tons
Inventory rating21.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialWood or Timber
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length53 ft (16.3 m)
Longest span19 ft (5.8 m)
Deck width25 ft (7.7 m)
Roadway width25 ft (7.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic390 (2020)
Projected traffic624 by 2042
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$371,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa A307 over Moore Branch built?

It was built in 1965, making it 60 years old in 2025.

What condition is Nfa A307 over Moore Branch 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 May 2023.

How much traffic does Nfa A307 over Moore Branch carry?

About 390 vehicles per day (2020 count), of which roughly 4% are trucks.

How long is Nfa A307 over Moore Branch?

The structure is 53 ft (16.3 m) long with a longest span of 19 ft (5.8 m) and a deck 25 ft wide.

Who owns Nfa A307 over Moore Branch?

It is owned by the County Highway Agency.