US Bridges

Nfa A136 over Muddy Creek

Fair

Washington County, Tennessee · E Off SR75-N of US11E JCT · Structure no. 900A1360001

Built
1984
41 years old
Condition
Fair
inspected May 2024
Type
Culvert
Concrete Continuous
Length
39 ft
3 main spans
Daily traffic
340
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A136 over Muddy Creek is a concrete continuous culvert carrying Nfa A136 over Muddy Creek in Washington 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.

It carries about 340 vehicles a day, roughly 2% of them trucks, projected to reach 544 by 2042. The structure is 39 ft (11.9 m) long and 31 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesNfa A136
CrossesMuddy Creek
LocationE Off SR75-N of US11E JCT
RouteCounty Highway 136
Coordinates36.2999, -82.55962
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 protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
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 rating53.6 US tons
Inventory rating31.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length39 ft (11.9 m)
Longest span12 ft (3.8 m)
Deck width31 ft (9.4 m)
Roadway width27 ft (8.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic340 (2020)
Projected traffic544 by 2042
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa A136 over Muddy Creek built?

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

What condition is Nfa A136 over Muddy 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 May 2024.

How much traffic does Nfa A136 over Muddy Creek carry?

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

How long is Nfa A136 over Muddy Creek?

The structure is 39 ft (11.9 m) long with a longest span of 12 ft (3.8 m) and a deck 31 ft wide.

Who owns Nfa A136 over Muddy Creek?

It is owned by the County Highway Agency.