US Bridges

Nfa A077 over Harris Creek

Good

Bradley County, Tennessee · .5MI West of I75 · Structure no. 060A0770003

Built
1984
41 years old
Condition
Good
inspected September 2023
Type
Culvert
Concrete Continuous
Length
38 ft
3 main spans
Daily traffic
550
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A077 over Harris Creek is a concrete continuous culvert carrying Nfa A077 over Harris Creek in Bradley County, Tennessee. It was built in 1984, so it is 41 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 550 vehicles a day, roughly 2% of them trucks, projected to reach 880 by 2041. The structure is 38 ft (11.6 m) long and 27 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesNfa A077
CrossesHarris Creek
Location.5MI West of I75
RouteCounty Highway 77
Coordinates35.16817, -84.94518
Functional classUrban 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 protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Culvert7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than 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 rating71.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length38 ft (11.6 m)
Longest span12 ft (3.7 m)
Deck width27 ft (8.3 m)
Roadway width23 ft (7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic550 (2020)
Projected traffic880 by 2041
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 A077 over Harris Creek built?

It was built in 1984, making it 41 years old in 2025.

What condition is Nfa A077 over Harris 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 September 2023.

How much traffic does Nfa A077 over Harris Creek carry?

About 550 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa A077 over Harris Creek?

The structure is 38 ft (11.6 m) long with a longest span of 12 ft (3.7 m) and a deck 27 ft wide.

Who owns Nfa A077 over Harris Creek?

It is owned by the County Highway Agency.