US Bridges

Nfa A287 over Dry Branch

Good

Macon County, Tennessee · 6 M NW Red Boiling Spring · Structure no. 560A2870001

Built
1998
27 years old
Condition
Good
inspected August 2023
Type
Culvert
Concrete Continuous
Length
34 ft
2 main spans
Daily traffic
110
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A287 over Dry Branch is a concrete continuous culvert carrying Nfa A287 over Dry Branch in Macon County, Tennessee. It was built in 1998, so it is 27 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 110 vehicles a day, roughly 2% of them trucks, projected to reach 176 by 2041. The structure is 34 ft (10.3 m) long and 28 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesNfa A287
CrossesDry Branch
Location6 M NW Red Boiling Spring
RouteCounty Highway 287
Coordinates36.58323, -85.93063
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 protection8 Very GoodNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating48.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length34 ft (10.3 m)
Longest span15 ft (4.6 m)
Deck width28 ft (8.5 m)
Roadway width23 ft (7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic110 (2020)
Projected traffic176 by 2041
Trucks2%
Lanes on structure2
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa A287 over Dry Branch built?

It was built in 1998, making it 27 years old in 2025.

What condition is Nfa A287 over Dry 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 August 2023.

How much traffic does Nfa A287 over Dry Branch carry?

About 110 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa A287 over Dry Branch?

The structure is 34 ft (10.3 m) long with a longest span of 15 ft (4.6 m) and a deck 28 ft wide.

Who owns Nfa A287 over Dry Branch?

It is owned by the County Highway Agency.