US Bridges

Nfa 863 (sa 3503) over Marshall Creek

FairPosted for load

Hardeman County, Tennessee · 3.5 MI S of SR18 · Structure no. 35S82520009

Built
1972
53 years old, rebuilt 1999
Condition
Fair
inspected August 2024
Type
Channel Beam
Concrete
Length
38 ft
2 main spans
Daily traffic
244
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa 863 (sa 3503) over Marshall Creek is a concrete channel beam carrying Nfa 863 (sa 3503) over Marshall Creek in Hardeman County, Tennessee. It was built in 1972 and reconstructed in 1999, so it is 53 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 244 vehicles a day, roughly 3% of them trucks, projected to reach 374 by 2042. The structure is 38 ft (11.6 m) long and 25 ft wide. If it were closed, the detour would be 13 mi (21 km).

Location

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CarriesNfa 863 (sa 3503)
CrossesMarshall Creek
Location3.5 MI S of SR18
RouteCounty Highway 863
CountyHardeman County
StateTennessee
Coordinates35.16197, -89.06681
Functional classRural Minor Collector

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 inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
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 rating37.1 US tons
Inventory rating28.5 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans2
Design loadHS 20
Structure length38 ft (11.6 m)
Longest span19 ft (5.8 m)
Deck width25 ft (7.7 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic244 (2021)
Projected traffic374 by 2042
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed13 mi (21 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$275,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa 863 (sa 3503) over Marshall Creek built?

It was built in 1972, making it 53 years old in 2025. It was reconstructed in 1999.

What condition is Nfa 863 (sa 3503) over Marshall 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 August 2024.

How much traffic does Nfa 863 (sa 3503) over Marshall Creek carry?

About 244 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Nfa 863 (sa 3503) over Marshall Creek?

The structure is 38 ft (11.6 m) long with a longest span of 19 ft (5.8 m) and a deck 25 ft wide.

Who owns Nfa 863 (sa 3503) over Marshall Creek?

It is owned by the County Highway Agency.