US Bridges

Old Hammond HWY over Lively Bayou

Fair

East Baton Rouge Parish, Louisiana · 2.4 Miles E of US61 · Structure no. 611708170904121

Built
1958
67 years old
Condition
Fair
inspected May 2023
Type
Slab
Concrete
Length
120 ft
6 main spans
Daily traffic
18,309
2024 count
Owner
County
County Highway Agency

About this bridge

Old Hammond HWY over Lively Bayou is a concrete slab carrying Old Hammond HWY over Lively Bayou in East Baton Rouge Parish, Louisiana. It was built in 1958, so it is 67 years old, older than the Louisiana average of 43 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 18,309 vehicles a day, roughly 9% of them trucks, projected to reach 20,139 by 2044. The structure is 120 ft (36.6 m) long and 31 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesOld Hammond HWY
CrossesLively Bayou
Location2.4 Miles E of US61
RouteCounty Highway 0
CountyEast Baton Rouge Parish
StateLouisiana
Coordinates30.44126, -91.0426
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating28.5 US tons
Inventory rating22.2 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20
Structure length120 ft (36.6 m)
Longest span20 ft (6.1 m)
Deck width31 ft (9.5 m)
Roadway width26 ft (8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18,309 (2024)
Projected traffic20,139 by 2044
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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$585,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Old Hammond HWY over Lively Bayou built?

It was built in 1958, making it 67 years old in 2025.

What condition is Old Hammond HWY over Lively Bayou 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 May 2023.

How much traffic does Old Hammond HWY over Lively Bayou carry?

About 18,309 vehicles per day (2024 count), of which roughly 9% are trucks.

How long is Old Hammond HWY over Lively Bayou?

The structure is 120 ft (36.6 m) long with a longest span of 20 ft (6.1 m) and a deck 31 ft wide.

Who owns Old Hammond HWY over Lively Bayou?

It is owned by the County Highway Agency.