US Bridges

Nfa A785 over Branch

PoorPosted for load

Madison County, Tennessee · 3.1 MI SW JCT SR138&SR223 · Structure no. 570A4100001

Built
1968
57 years old
Condition
Poor
inspected May 2023
Type
Channel Beam
Concrete
Length
57 ft
3 main spans
Daily traffic
100
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A785 over Branch is a concrete channel beam carrying Nfa A785 over Branch in Madison County, Tennessee. It was built in 1968, so it is 57 years old, older than the Tennessee average of 47.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 100 vehicles a day, roughly 5% of them trucks, projected to reach 160 by 2042. The structure is 57 ft (17.4 m) long and 23 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesNfa A785
CrossesBranch
Location3.1 MI SW JCT SR138&SR223
RouteCounty Highway 785
CountyMadison County
StateTennessee
Coordinates35.44058, -89.05933
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
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 evaluation3: Basically intolerable, requiring high priority of corrective action
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 rating16.8 US tons
Inventory rating6.8 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans3
Design loadUnknown
Structure length57 ft (17.4 m)
Longest span19 ft (5.8 m)
Deck width23 ft (6.9 m)
Roadway width23 ft (6.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2020)
Projected traffic160 by 2042
Trucks5%
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$352,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa A785 over Branch built?

It was built in 1968, making it 57 years old in 2025.

What condition is Nfa A785 over Branch in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in May 2023.

How much traffic does Nfa A785 over Branch carry?

About 100 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is Nfa A785 over Branch?

The structure is 57 ft (17.4 m) long with a longest span of 19 ft (5.8 m) and a deck 23 ft wide.

Who owns Nfa A785 over Branch?

It is owned by the County Highway Agency.