US Bridges

Nfa 1765 (sa 9107) over Blackwell Branch

Good

Wayne County, Tennessee · 5.3 MI NE JCT SR13&SR227 · Structure no. 91017650005

Built
1950
75 years old
Condition
Good
inspected November 2024
Type
Culvert
Concrete Continuous
Length
22 ft
2 main spans
Daily traffic
346
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa 1765 (sa 9107) over Blackwell Branch is a concrete continuous culvert carrying Nfa 1765 (sa 9107) over Blackwell Branch in Wayne County, Tennessee. It was built in 1950, so it is 75 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 346 vehicles a day, roughly 3% of them trucks, projected to reach 554 by 2042. The structure is 22 ft (6.7 m) long and 24 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

CarriesNfa 1765 (sa 9107)
CrossesBlackwell Branch
Location5.3 MI NE JCT SR13&SR227
RouteCounty Highway 1765
Coordinates35.09325, -87.60515
Functional classRural Minor Collector

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to 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 alignment8: Equal to present desirable criteria
Operating rating39.7 US tons
Inventory rating24.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadH 15
Structure length22 ft (6.7 m)
Longest span10 ft (3 m)
Deck width24 ft (7.3 m)
Roadway width21 ft (6.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic346 (2021)
Projected traffic554 by 2042
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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$77,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa 1765 (sa 9107) over Blackwell Branch built?

It was built in 1950, making it 75 years old in 2025.

What condition is Nfa 1765 (sa 9107) over Blackwell 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 November 2024.

How much traffic does Nfa 1765 (sa 9107) over Blackwell Branch carry?

About 346 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Nfa 1765 (sa 9107) over Blackwell Branch?

The structure is 22 ft (6.7 m) long with a longest span of 10 ft (3 m) and a deck 24 ft wide.

Who owns Nfa 1765 (sa 9107) over Blackwell Branch?

It is owned by the County Highway Agency.