US Bridges

Nfa A145 over Andy Branch

Fair

Anderson County, Tennessee · W Off I75-.8 M N of CO Li · Structure no. 010A1450001

Built
1970
55 years old
Condition
Fair
inspected June 2023
Type
Culvert
Concrete Continuous
Length
22 ft
2 main spans
Daily traffic
1,380
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A145 over Andy Branch is a concrete continuous culvert carrying Nfa A145 over Andy Branch in Anderson County, Tennessee. It was built in 1970, so it is 55 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.

It carries about 1,380 vehicles a day, roughly 2% of them trucks, projected to reach 2,208 by 2041. The structure is 22 ft (6.7 m) long. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesNfa A145
CrossesAndy Branch
LocationW Off I75-.8 M N of CO Li
RouteCounty Highway 145
CountyAnderson County
StateTennessee
Coordinates36.12538, -84.03616
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating98.2 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadUnknown
Structure length22 ft (6.7 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,380 (2020)
Projected traffic2,208 by 2041
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa A145 over Andy Branch built?

It was built in 1970, making it 55 years old in 2025.

What condition is Nfa A145 over Andy 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 June 2023.

How much traffic does Nfa A145 over Andy Branch carry?

About 1,380 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa A145 over Andy Branch?

The structure is 22 ft (6.7 m) long with a longest span of 10 ft (3 m).

Who owns Nfa A145 over Andy Branch?

It is owned by the County Highway Agency.