US Bridges

Nfa 970 over Cedar Branch

PoorPosted for load

Maury County, Tennessee · E. 7th. St. in Columbia · Structure no. 60009700001

Built
1969
56 years old
Condition
Poor
inspected July 2024
Type
Slab
Concrete
Length
99 ft
3 main spans
Daily traffic
1,289
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

Nfa 970 over Cedar Branch is a concrete slab carrying Nfa 970 over Cedar Branch in Maury County, Tennessee. It was built in 1969, so it is 56 years old, older than the Tennessee average of 47.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 1,289 vehicles a day, roughly 3% of them trucks, projected to reach 2,062 by 2042. The structure is 99 ft (30.2 m) long and 32 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesNfa 970
CrossesCedar Branch
LocationE. 7th. St. in Columbia
RouteCity Street 970
Coordinates35.61485, -87.02907
Functional classUrban Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating7.8 US tons
Inventory rating6.1 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length99 ft (30.2 m)
Longest span48 ft (14.6 m)
Deck width32 ft (9.9 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,289 (2021)
Projected traffic2,062 by 2042
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$239,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa 970 over Cedar Branch built?

It was built in 1969, making it 56 years old in 2025.

What condition is Nfa 970 over Cedar Branch in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in July 2024.

How much traffic does Nfa 970 over Cedar Branch carry?

About 1,289 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Nfa 970 over Cedar Branch?

The structure is 99 ft (30.2 m) long with a longest span of 48 ft (14.6 m) and a deck 32 ft wide.

Who owns Nfa 970 over Cedar Branch?

It is owned by the City or Municipal Highway Agency.