US Bridges

Hammack RD over Creek

Good

Livingston Parish, Louisiana · 7.4 MI S of Ls 447 Exit · Structure no. 623230235905271

Built
1998
27 years old
Condition
Good
inspected August 2024
Type
Culvert
Steel
Length
40 ft
4 main spans
Daily traffic
500
2022 count
Owner
County
County Highway Agency

About this bridge

Hammack RD over Creek is a steel culvert carrying Hammack RD over Creek in Livingston Parish, Louisiana. It was built in 1998, so it is 27 years old, younger than the Louisiana average of 43 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 500 vehicles a day, projected to reach 550 by 2042. The structure is 40 ft (12.2 m) long and 36 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesHammack RD
CrossesCreek
Location7.4 MI S of Ls 447 Exit
RouteCounty Highway 0
Coordinates30.39233, -90.87895
Functional classRural Minor Arterial

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 inspectionAugust 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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating107.1 US tons
Inventory rating82.1 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans4
Design loadHS 20
Structure length40 ft (12.2 m)
Longest span7 ft (2.1 m)
Deck width36 ft (11 m)
Roadway width23 ft (7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic500 (2022)
Projected traffic550 by 2042
Trucks—
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

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Hammack RD over Creek built?

It was built in 1998, making it 27 years old in 2025.

What condition is Hammack RD over Creek 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 August 2024.

How much traffic does Hammack RD over Creek carry?

About 500 vehicles per day (2022 count).

How long is Hammack RD over Creek?

The structure is 40 ft (12.2 m) long with a longest span of 7 ft (2.1 m) and a deck 36 ft wide.

Who owns Hammack RD over Creek?

It is owned by the County Highway Agency.