US Bridges

Brockway RD over Tarklin Branch

Good

Madison County, Alabama · 0.8MI S US HWY 431S · Structure no. 016705

Built
1936
89 years old
Condition
Good
inspected October 2024
Type
Culvert
Masonry
Length
34 ft
2 main spans
Daily traffic
200
1996 count
Owner
City
City or Municipal Highway Agency

About this bridge

Brockway RD over Tarklin Branch is a masonry culvert carrying Brockway RD over Tarklin Branch in Madison County, Alabama. It was built in 1936, so it is 89 years old, older than the Alabama average of 51.1 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 200 vehicles a day, roughly 1% of them trucks, projected to reach 275 by 2035. The structure is 34 ft (10.4 m) long and 22 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesBrockway RD
CrossesTarklin Branch
Location0.8MI S US HWY 431S
RouteCity Street 0
StateAlabama
Coordinates34.56621, -86.45051
Functional classUrban Collector

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionOctober 2024
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 adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating36 US tons
Inventory rating26 US tons

Structure

Structure typeCulvert
MaterialMasonry
DeckNot applicable
Main spans2
Design loadH 15
Structure length34 ft (10.4 m)
Longest span17 ft (5.2 m)
Deck width22 ft (6.7 m)
Roadway width20 ft (6.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic200 (1996)
Projected traffic275 by 2035
Trucks1%
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

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$338,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Brockway RD over Tarklin Branch built?

It was built in 1936, making it 89 years old in 2025.

What condition is Brockway RD over Tarklin 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 October 2024.

How much traffic does Brockway RD over Tarklin Branch carry?

About 200 vehicles per day (1996 count), of which roughly 1% are trucks.

How long is Brockway RD over Tarklin Branch?

The structure is 34 ft (10.4 m) long with a longest span of 17 ft (5.2 m) and a deck 22 ft wide.

Who owns Brockway RD over Tarklin Branch?

It is owned by the City or Municipal Highway Agency.