US Bridges

FAP 100 over Dry Branch

Fair

Chester County, Tennessee · 3.58 Mi.E. Jct. FAS 8164 · Structure no. 12SR1000013

Built
1931
94 years old, rebuilt 1966
Condition
Fair
inspected June 2023
Type
Tee Beam
Concrete
Length
142 ft
5 main spans
Daily traffic
6,381
2021 count
Owner
State
State Highway Agency

About this bridge

FAP 100 over Dry Branch is a concrete tee beam carrying FAP 100 over Dry Branch in Chester County, Tennessee. It was built in 1931 and reconstructed in 1966, so it is 94 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 5 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 6,381 vehicles a day, roughly 6% of them trucks, projected to reach 10,482 by 2042. The structure is 142 ft (43.3 m) long and 36 ft wide. If it were closed, the detour would be 67.1 mi (108 km).

CarriesFAP 100
CrossesDry Branch
Location3.58 Mi.E. Jct. FAS 8164
RouteState Highway 100
Coordinates35.45781, -88.57345
Functional classRural Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating41.8 US tons
Inventory rating24.7 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length142 ft (43.3 m)
Longest span28 ft (8.5 m)
Deck width36 ft (11 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,381 (2021)
Projected traffic10,482 by 2042
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed67.1 mi (108 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$2.1 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was FAP 100 over Dry Branch built?

It was built in 1931, making it 94 years old in 2025. It was reconstructed in 1966.

What condition is FAP 100 over Dry 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 FAP 100 over Dry Branch carry?

About 6,381 vehicles per day (2021 count), of which roughly 6% are trucks.

How long is FAP 100 over Dry Branch?

The structure is 142 ft (43.3 m) long with a longest span of 28 ft (8.5 m) and a deck 36 ft wide.

Who owns FAP 100 over Dry Branch?

It is owned by the State Highway Agency.