US Bridges

Nfa A187 over Branch

Good

Marshall County, Tennessee · 2.7 MI SW JCT SR50&SR129 · Structure no. 590A1870001

Built
1975
50 years old
Condition
Good
inspected July 2024
Type
Culvert
Concrete Continuous
Length
48 ft
3 main spans
Daily traffic
90
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A187 over Branch is a concrete continuous culvert carrying Nfa A187 over Branch in Marshall County, Tennessee. It was built in 1975, so it is 50 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 90 vehicles a day, roughly 1% of them trucks, projected to reach 144 by 2040. The structure is 48 ft (14.5 m) long and 14 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesNfa A187
CrossesBranch
Location2.7 MI SW JCT SR50&SR129
RouteCounty Highway 187
CountyMarshall County
StateTennessee
Coordinates35.31978, -86.7086
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
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating77.5 US tons
Inventory rating26.8 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length48 ft (14.5 m)
Longest span14 ft (4.3 m)
Deck width14 ft (4.3 m)
Roadway width12 ft (3.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic90 (2020)
Projected traffic144 by 2040
Trucks1%
Lanes on structure1
Traffic directionOne-lane bridge for two-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$214,000 (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa A187 over Branch built?

It was built in 1975, making it 50 years old in 2025.

What condition is Nfa A187 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 July 2024.

How much traffic does Nfa A187 over Branch carry?

About 90 vehicles per day (2020 count), of which roughly 1% are trucks.

How long is Nfa A187 over Branch?

The structure is 48 ft (14.5 m) long with a longest span of 14 ft (4.3 m) and a deck 14 ft wide.

Who owns Nfa A187 over Branch?

It is owned by the County Highway Agency.