US Bridges

FAU 1 348029M over Branch & CSX RR

Good

Davidson County, Tennessee · .1 M SW JCT SR100&SR1 · Structure no. 19SR0010007

Built
1999
26 years old
Condition
Good
inspected February 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
632 ft
6 main spans
Daily traffic
15,297
2021 count
Owner
State
State Highway Agency

About this bridge

FAU 1 348029M over Branch & CSX RR is a prestressed concrete continuous stringer/multi-beam or girder carrying FAU 1 348029M over Branch & CSX RR in Davidson County, Tennessee. It was built in 1999, so it is 26 years old, younger 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 15,297 vehicles a day, roughly 9% of them trucks, projected to reach 24,475 by 2042. The structure is 632 ft (192.6 m) long and 81 ft wide. If it were closed, the detour would be 14.9 mi (24 km).

CarriesFAU 1 348029M
CrossesBranch & CSX RR
Location.1 M SW JCT SR100&SR1
RouteU.S. Route 70
Coordinates36.09755, -86.87495
Functional classUrban Other Principal Arterial

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
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
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64.6 US tons
Inventory rating49.6 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, precast panels
Main spans6
Design loadHS 20
Structure length632 ft (192.6 m)
Longest span115 ft (35 m)
Deck width81 ft (24.6 m)
Roadway width79 ft (24 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,297 (2021)
Projected traffic24,475 by 2042
Trucks9%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad and waterway
Detour if closed14.9 mi (24 km)
TollOn a free road
National Highway SystemYes

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 FAU 1 348029M over Branch & CSX RR built?

It was built in 1999, making it 26 years old in 2025.

What condition is FAU 1 348029M over Branch & CSX RR 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 FAU 1 348029M over Branch & CSX RR carry?

About 15,297 vehicles per day (2021 count), of which roughly 9% are trucks.

How long is FAU 1 348029M over Branch & CSX RR?

The structure is 632 ft (192.6 m) long with a longest span of 115 ft (35 m) and a deck 81 ft wide.

Who owns FAU 1 348029M over Branch & CSX RR?

It is owned by the State Highway Agency.