US Bridges

Nfa A197 over Grissim Branch

Good

Wilson County, Tennessee · .8 MI North of SR 24 · Structure no. 950A1970005

Built
1999
26 years old
Condition
Good
inspected May 2024
Type
Culvert
Concrete Continuous
Length
26 ft
2 main spans
Daily traffic
410
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A197 over Grissim Branch is a concrete continuous culvert carrying Nfa A197 over Grissim Branch in Wilson County, Tennessee. It was built in 1999, so it is 26 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 410 vehicles a day, roughly 2% of them trucks, projected to reach 656 by 2038. The structure is 26 ft (8 m) long and 24 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesNfa A197
CrossesGrissim Branch
Location.8 MI North of SR 24
RouteCounty Highway 197
CountyWilson County
StateTennessee
Coordinates36.24982, -86.17525
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 protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionMay 2024
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 rating98.2 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length26 ft (8 m)
Longest span12 ft (3.7 m)
Deck width24 ft (7.3 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic410 (2020)
Projected traffic656 by 2038
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$103,000 (2018 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa A197 over Grissim Branch built?

It was built in 1999, making it 26 years old in 2025.

What condition is Nfa A197 over Grissim Branch 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 2024.

How much traffic does Nfa A197 over Grissim Branch carry?

About 410 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa A197 over Grissim Branch?

The structure is 26 ft (8 m) long with a longest span of 12 ft (3.7 m) and a deck 24 ft wide.

Who owns Nfa A197 over Grissim Branch?

It is owned by the County Highway Agency.