US Bridges

Nfa A338 over Poor House Branch

Fair

Robertson County, Tennessee · 3.1 MI NE JCT SR49&SR257 · Structure no. 740A3380001

Built
1965
60 years old
Condition
Fair
inspected April 2024
Type
Culvert
Concrete Continuous
Length
32 ft
2 main spans
Daily traffic
340
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A338 over Poor House Branch is a concrete continuous culvert carrying Nfa A338 over Poor House Branch in Robertson 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.

It carries about 340 vehicles a day, roughly 2% of them trucks, projected to reach 544 by 2040. The structure is 32 ft (9.8 m) long and 24 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesNfa A338
CrossesPoor House Branch
Location3.1 MI NE JCT SR49&SR257
RouteCounty Highway 0A338
CountyRobertson County
StateTennessee
Coordinates36.45865, -86.90054
Functional classUrban 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 inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no 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 alignment8: Equal to present desirable criteria
Operating rating60.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadUnknown
Structure length32 ft (9.8 m)
Longest span15 ft (4.6 m)
Deck width24 ft (7.3 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic340 (2020)
Projected traffic544 by 2040
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$101,000 (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa A338 over Poor House Branch built?

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

What condition is Nfa A338 over Poor House 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 April 2024.

How much traffic does Nfa A338 over Poor House Branch carry?

About 340 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa A338 over Poor House Branch?

The structure is 32 ft (9.8 m) long with a longest span of 15 ft (4.6 m) and a deck 24 ft wide.

Who owns Nfa A338 over Poor House Branch?

It is owned by the County Highway Agency.