US Bridges

Nfa A445 over Branch

Good

Obion County, Tennessee · Garrett Sawmill Road · Structure no. 660A4450001

Built
1970
55 years old
Condition
Good
inspected March 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
24 ft
1 main span
Daily traffic
360
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A445 over Branch is a steel stringer/multi-beam or girder carrying Nfa A445 over Branch in Obion County, Tennessee. It was built in 1970, so it is 55 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 360 vehicles a day, roughly 4% of them trucks, projected to reach 576 by 2041. The structure is 24 ft (7.3 m) long and 23 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesNfa A445
CrossesBranch
LocationGarrett Sawmill Road
RouteCounty Highway 445
CountyObion County
StateTennessee
Coordinates36.34153, -89.0548
Functional classRural Local

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 protection7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating73.5 US tons
Inventory rating35.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length24 ft (7.3 m)
Longest span24 ft (7.3 m)
Deck width23 ft (7.1 m)
Roadway width23 ft (6.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic360 (2020)
Projected traffic576 by 2041
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$89,000 (2021 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa A445 over Branch built?

It was built in 1970, making it 55 years old in 2025.

What condition is Nfa A445 over 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 March 2023.

How much traffic does Nfa A445 over Branch carry?

About 360 vehicles per day (2020 count), of which roughly 4% are trucks.

How long is Nfa A445 over Branch?

The structure is 24 ft (7.3 m) long with a longest span of 24 ft (7.3 m) and a deck 23 ft wide.

Who owns Nfa A445 over Branch?

It is owned by the County Highway Agency.