US Bridges

Nfa B233 over Branch

Fair

Hamilton County, Tennessee · In City of Chattanooga · Structure no. 330B2330001

Built
1925
100 years old
Condition
Fair
inspected March 2024
Type
Culvert
Concrete Continuous
Length
21 ft
2 main spans
Daily traffic
230
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Nfa B233 over Branch is a concrete continuous culvert carrying Nfa B233 over Branch in Hamilton County, Tennessee. It was built in 1925, so it is 100 years old, older than the Tennessee average of 47.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 230 vehicles a day, roughly 2% of them trucks, projected to reach 368 by 2040. The structure is 21 ft (6.4 m) long and 16 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesNfa B233
CrossesBranch
LocationIn City of Chattanooga
RouteCity Street 233
CountyHamilton County
StateTennessee
Coordinates35.0118, -85.23376
Functional classUrban Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44.6 US tons
Inventory rating26.8 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length21 ft (6.4 m)
Longest span13 ft (4.1 m)
Deck width16 ft (4.9 m)
Roadway width15 ft (4.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic230 (2020)
Projected traffic368 by 2040
Trucks2%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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$125,000 (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa B233 over Branch built?

It was built in 1925, making it 100 years old in 2025.

What condition is Nfa B233 over Branch in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in March 2024.

How much traffic does Nfa B233 over Branch carry?

About 230 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa B233 over Branch?

The structure is 21 ft (6.4 m) long with a longest span of 13 ft (4.1 m) and a deck 16 ft wide.

Who owns Nfa B233 over Branch?

It is owned by the City or Municipal Highway Agency.