US Bridges

LA0112 over Rocky Bayou

Good

Rapides Parish, Louisiana · 7.12 Mi. West of US 165 · Structure no. 084000730200761

Built
1993
32 years old
Condition
Good
inspected June 2024
Type
Slab
Concrete
Length
80 ft
4 main spans
Daily traffic
1,268
2021 count
Owner
State
State Highway Agency

About this bridge

LA0112 over Rocky Bayou is a concrete slab carrying LA0112 over Rocky Bayou in Rapides Parish, Louisiana. It was built in 1993, so it is 32 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 1,268 vehicles a day, roughly 14% of them trucks, projected to reach 1,394 by 2041. The structure is 80 ft (24.4 m) long and 33 ft wide. If it were closed, the detour would be 18 mi (29 km).

Location

Open in Google Maps
CarriesLA0112
CrossesRocky Bayou
Location7.12 Mi. West of US 165
RouteState Highway 112
CountyRapides Parish
StateLouisiana
Coordinates31.09817, -92.6275
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating66 US tons
Inventory rating40 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length80 ft (24.4 m)
Longest span20 ft (6.1 m)
Deck width33 ft (10 m)
Roadway width30 ft (9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,268 (2021)
Projected traffic1,394 by 2041
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed18 mi (29 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was LA0112 over Rocky Bayou built?

It was built in 1993, making it 32 years old in 2025.

What condition is LA0112 over Rocky Bayou 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 June 2024.

How much traffic does LA0112 over Rocky Bayou carry?

About 1,268 vehicles per day (2021 count), of which roughly 14% are trucks.

How long is LA0112 over Rocky Bayou?

The structure is 80 ft (24.4 m) long with a longest span of 20 ft (6.1 m) and a deck 33 ft wide.

Who owns LA0112 over Rocky Bayou?

It is owned by the State Highway Agency.