US Bridges

Nfa A005 over Griggs Hollow Branch

Good

Smith County, Tennessee · 4.2 MI NE JCT SR85&SR263 · Structure no. 800A0050001

Built
1983
42 years old
Condition
Good
inspected June 2023
Type
Culvert
Concrete Continuous
Length
25 ft
2 main spans
Daily traffic
20
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A005 over Griggs Hollow Branch is a concrete continuous culvert carrying Nfa A005 over Griggs Hollow Branch in Smith County, Tennessee. It was built in 1983, so it is 42 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 20 vehicles a day, roughly 1% of them trucks, projected to reach 32 by 2042. The structure is 25 ft (7.6 m) long and 15 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

Location

Open in Google Maps
CarriesNfa A005
CrossesGriggs Hollow Branch
Location4.2 MI NE JCT SR85&SR263
RouteCounty Highway 5
CountySmith County
StateTennessee
Coordinates36.34973, -85.87922
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 protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length25 ft (7.6 m)
Longest span10 ft (3 m)
Deck width15 ft (4.7 m)
Roadway width11 ft (3.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20 (2020)
Projected traffic32 by 2042
Trucks1%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$118,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa A005 over Griggs Hollow Branch built?

It was built in 1983, making it 42 years old in 2025.

What condition is Nfa A005 over Griggs Hollow 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 June 2023.

How much traffic does Nfa A005 over Griggs Hollow Branch carry?

About 20 vehicles per day (2020 count), of which roughly 1% are trucks.

How long is Nfa A005 over Griggs Hollow Branch?

The structure is 25 ft (7.6 m) long with a longest span of 10 ft (3 m) and a deck 15 ft wide.

Who owns Nfa A005 over Griggs Hollow Branch?

It is owned by the County Highway Agency.