US Bridges

Mixon RD over Chickasaw Creek

Good

La Salle Parish, Louisiana · Logmi 1.67 FR 612 to 618 · Structure no. 583031531921191

Built
1999
26 years old
Condition
Good
inspected July 2023
Type
Slab
Concrete
Length
114 ft
6 main spans
Daily traffic
50
1973 count
Owner
County
County Highway Agency

About this bridge

Mixon RD over Chickasaw Creek is a concrete slab carrying Mixon RD over Chickasaw Creek in La Salle Parish, Louisiana. It was built in 1999, so it is 26 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 50 vehicles a day, projected to reach 55 by 1993. The structure is 114 ft (34.7 m) long and 27 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesMixon RD
CrossesChickasaw Creek
LocationLogmi 1.67 FR 612 to 618
RouteCounty Highway 0
Coordinates31.88489, -92.19825
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating37.1 US tons
Inventory rating28.5 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20
Structure length114 ft (34.7 m)
Longest span19 ft (5.8 m)
Deck width27 ft (8.2 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (1973)
Projected traffic55 by 1993
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 Mixon RD over Chickasaw Creek built?

It was built in 1999, making it 26 years old in 2025.

What condition is Mixon RD over Chickasaw 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 July 2023.

How much traffic does Mixon RD over Chickasaw Creek carry?

About 50 vehicles per day (1973 count).

How long is Mixon RD over Chickasaw Creek?

The structure is 114 ft (34.7 m) long with a longest span of 19 ft (5.8 m) and a deck 27 ft wide.

Who owns Mixon RD over Chickasaw Creek?

It is owned by the County Highway Agency.