US Bridges

FAP 10 over Mill Branch

Good

Trousdale County, Tennessee · In Hartsville · Structure no. 85SR0100015

Built
1952
73 years old
Condition
Good
inspected February 2023
Type
Culvert
Concrete Continuous
Length
23 ft
2 main spans
Daily traffic
9,933
2021 count
Owner
State
State Highway Agency

About this bridge

FAP 10 over Mill Branch is a concrete continuous culvert carrying FAP 10 over Mill Branch in Trousdale County, Tennessee. It was built in 1952, so it is 73 years old, older than the Tennessee average of 47.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 9,933 vehicles a day, roughly 5% of them trucks, projected to reach 13,981 by 2041. The structure is 23 ft (7 m) long. If it were closed, the detour would be 34.8 mi (56 km).

CarriesFAP 10
CrossesMill Branch
LocationIn Hartsville
RouteState Highway 10
Coordinates36.40035, -86.16576
Functional classRural Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Culvert7 GoodSome minor problems.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy6: Equal to 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 loadH 20
Structure length23 ft (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 traffic9,933 (2021)
Projected traffic13,981 by 2041
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed34.8 mi (56 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was FAP 10 over Mill Branch built?

It was built in 1952, making it 73 years old in 2025.

What condition is FAP 10 over Mill Branch in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in February 2023.

How much traffic does FAP 10 over Mill Branch carry?

About 9,933 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is FAP 10 over Mill Branch?

The structure is 23 ft (7 m) long with a longest span of 10 ft (3 m).

Who owns FAP 10 over Mill Branch?

It is owned by the State Highway Agency.