US Bridges

Nfa A128 over Blue Spring Creek

Good

Cheatham County, Tennessee · 1 M. E. SR49. · Structure no. 110A1280001

Built
1987
38 years old
Condition
Good
inspected August 2024
Type
Culvert
Concrete Continuous
Length
68 ft
2 main spans
Daily traffic
460
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A128 over Blue Spring Creek is a concrete continuous culvert carrying Nfa A128 over Blue Spring Creek in Cheatham County, Tennessee. It was built in 1987, so it is 38 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 460 vehicles a day, roughly 4% of them trucks, projected to reach 736 by 2041. The structure is 68 ft (20.7 m) long and 26 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesNfa A128
CrossesBlue Spring Creek
Location1 M. E. SR49.
RouteCounty Highway 128
CountyCheatham County
StateTennessee
Coordinates36.32667, -87.0298
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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert7 GoodSome minor problems.
Last inspectionAugust 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 adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating31.4 US tons
Inventory rating24.3 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length68 ft (20.7 m)
Longest span30 ft (9.1 m)
Deck width26 ft (7.8 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic460 (2020)
Projected traffic736 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$188,000 (2021 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa A128 over Blue Spring Creek built?

It was built in 1987, making it 38 years old in 2025.

What condition is Nfa A128 over Blue Spring Creek 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 2024.

How much traffic does Nfa A128 over Blue Spring Creek carry?

About 460 vehicles per day (2020 count), of which roughly 4% are trucks.

How long is Nfa A128 over Blue Spring Creek?

The structure is 68 ft (20.7 m) long with a longest span of 30 ft (9.1 m) and a deck 26 ft wide.

Who owns Nfa A128 over Blue Spring Creek?

It is owned by the County Highway Agency.