US Bridges

Nfa 873 (sa 5704) over Johnson Creek

Good

Madison County, Tennessee · 6.3 MI NE JCT SR138&SR223 · Structure no. 57008730001

Built
1987
38 years old
Condition
Good
inspected May 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
107 ft
3 main spans
Daily traffic
659
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa 873 (sa 5704) over Johnson Creek is a prestressed concrete continuous stringer/multi-beam or girder carrying Nfa 873 (sa 5704) over Johnson Creek in Madison 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 659 vehicles a day, roughly 3% of them trucks, projected to reach 1,104 by 2041. The structure is 107 ft (32.6 m) long and 30 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesNfa 873 (sa 5704)
CrossesJohnson Creek
Location6.3 MI NE JCT SR138&SR223
RouteCounty Highway 873
CountyMadison County
StateTennessee
Coordinates35.51194, -88.91978
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
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating83.2 US tons
Inventory rating35.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length107 ft (32.6 m)
Longest span36 ft (11 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic659 (2021)
Projected traffic1,104 by 2041
Trucks3%
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 873 (sa 5704) over Johnson Creek built?

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

What condition is Nfa 873 (sa 5704) over Johnson 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 May 2023.

How much traffic does Nfa 873 (sa 5704) over Johnson Creek carry?

About 659 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Nfa 873 (sa 5704) over Johnson Creek?

The structure is 107 ft (32.6 m) long with a longest span of 36 ft (11 m) and a deck 30 ft wide.

Who owns Nfa 873 (sa 5704) over Johnson Creek?

It is owned by the County Highway Agency.