US Bridges

LA1200 over Bayou Bertrand

Good

Rapides Parish, Louisiana · 3.34 MI N of LA 121 · Structure no. 084000000084009

Built
2022
3 years old
Condition
Good
inspected January 2023
Type
Box Beam or Girders - Multiple
Concrete
Length
60 ft
3 main spans
Daily traffic
1,256
2021 count
Owner
State
State Highway Agency

About this bridge

LA1200 over Bayou Bertrand is a concrete box beam or girders - multiple carrying LA1200 over Bayou Bertrand in Rapides Parish, Louisiana. It was built in 2022, so it is 3 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,256 vehicles a day, roughly 14% of them trucks, projected to reach 1,381 by 2041. The structure is 60 ft (18.3 m) long and 35 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesLA1200
CrossesBayou Bertrand
Location3.34 MI N of LA 121
RouteState Highway 1200
CountyRapides Parish
StateLouisiana
Coordinates31.3751, -92.67125
Functional classRural Minor Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable 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 alignment8: Equal to present desirable criteria
Operating rating80.4 US tons
Inventory rating62.2 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialConcrete
DeckConcrete, precast panels
Main spans3
Design loadGreater than HL 93
Structure length60 ft (18.3 m)
Longest span20 ft (6.1 m)
Deck width35 ft (10.6 m)
Roadway width32 ft (9.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,256 (2021)
Projected traffic1,381 by 2041
Trucks14%
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

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 LA1200 over Bayou Bertrand built?

It was built in 2022, making it 3 years old in 2025.

What condition is LA1200 over Bayou Bertrand 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 January 2023.

How much traffic does LA1200 over Bayou Bertrand carry?

About 1,256 vehicles per day (2021 count), of which roughly 14% are trucks.

How long is LA1200 over Bayou Bertrand?

The structure is 60 ft (18.3 m) long with a longest span of 20 ft (6.1 m) and a deck 35 ft wide.

Who owns LA1200 over Bayou Bertrand?

It is owned by the State Highway Agency.