US Bridges

Nfa A029 over Parker Branch

Fair

Gibson County, Tennessee · 1.1 MI SE JCT SR105&DYER · Structure no. 270A0290003

Built
1970
55 years old
Condition
Fair
inspected July 2023
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete
Length
75 ft
1 main span
Daily traffic
100
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A029 over Parker Branch is a prestressed concrete box beam or girders - single or spread carrying Nfa A029 over Parker Branch in Gibson County, Tennessee. It was built in 1970, so it is 55 years old, older than the Tennessee average of 47.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 100 vehicles a day, roughly 2% of them trucks, projected to reach 160 by 2042. The structure is 75 ft (22.9 m) long and 26 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesNfa A029
CrossesParker Branch
Location1.1 MI SE JCT SR105&DYER
RouteCounty Highway 29
CountyGibson County
StateTennessee
Coordinates36.14872, -89.14078
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating58.5 US tons
Inventory rating34.6 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length75 ft (22.9 m)
Longest span72 ft (21.9 m)
Deck width26 ft (8 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2020)
Projected traffic160 by 2042
Trucks2%
Lanes on structure2
Traffic directionTwo-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 A029 over Parker Branch built?

It was built in 1970, making it 55 years old in 2025.

What condition is Nfa A029 over Parker Branch in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in July 2023.

How much traffic does Nfa A029 over Parker Branch carry?

About 100 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa A029 over Parker Branch?

The structure is 75 ft (22.9 m) long with a longest span of 72 ft (21.9 m) and a deck 26 ft wide.

Who owns Nfa A029 over Parker Branch?

It is owned by the County Highway Agency.