US Bridges

Nfa A046 over Pattens Branch

Good

Sumner County, Tennessee · 1.9 MI NE JCT SR11&SR41 · Structure no. 830A0460005

Built
1960
65 years old
Condition
Good
inspected January 2025
Type
Culvert
Concrete Continuous
Length
32 ft
2 main spans
Daily traffic
430
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Nfa A046 over Pattens Branch is a concrete continuous culvert carrying Nfa A046 over Pattens Branch in Sumner County, Tennessee. It was built in 1960, so it is 65 years old, older 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 430 vehicles a day, roughly 10% of them trucks, projected to reach 688 by 2041. The structure is 32 ft (9.8 m) long and 25 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesNfa A046
CrossesPattens Branch
Location1.9 MI NE JCT SR11&SR41
RouteCity Street 0A046
CountySumner County
StateTennessee
Coordinates36.3625, -86.69286
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 protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to 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 rating46.7 US tons
Inventory rating28.9 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadH 15
Structure length32 ft (9.8 m)
Longest span9 ft (2.7 m)
Deck width25 ft (7.5 m)
Roadway width23 ft (6.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic430 (2020)
Projected traffic688 by 2041
Trucks10%
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

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$112,000 (2021 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa A046 over Pattens Branch built?

It was built in 1960, making it 65 years old in 2025.

What condition is Nfa A046 over Pattens 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 January 2025.

How much traffic does Nfa A046 over Pattens Branch carry?

About 430 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is Nfa A046 over Pattens Branch?

The structure is 32 ft (9.8 m) long with a longest span of 9 ft (2.7 m) and a deck 25 ft wide.

Who owns Nfa A046 over Pattens Branch?

It is owned by the City or Municipal Highway Agency.