US Bridges

Guyton Swamp RD over Mill Creek

Good

Ouachita Parish, Louisiana · 1.55 MI NW of LA 34 · Structure no. 053732263922281

Built
1992
33 years old
Condition
Good
inspected April 2024
Type
Slab
Concrete
Length
72 ft
4 main spans
Daily traffic
74
1979 count
Owner
County
County Highway Agency

About this bridge

Guyton Swamp RD over Mill Creek is a concrete slab carrying Guyton Swamp RD over Mill Creek in Ouachita Parish, Louisiana. It was built in 1992, so it is 33 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 74 vehicles a day, projected to reach 81 by 1999. The structure is 72 ft (21.9 m) long and 27 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesGuyton Swamp RD
CrossesMill Creek
Location1.55 MI NW of LA 34
RouteCounty Highway 0
Coordinates32.43952, -92.38048
Functional classRural Local

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating40.7 US tons
Inventory rating31.4 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length72 ft (21.9 m)
Longest span19 ft (5.8 m)
Deck width27 ft (8.1 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic74 (1979)
Projected traffic81 by 1999
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Guyton Swamp RD over Mill Creek built?

It was built in 1992, making it 33 years old in 2025.

What condition is Guyton Swamp RD over Mill 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 April 2024.

How much traffic does Guyton Swamp RD over Mill Creek carry?

About 74 vehicles per day (1979 count).

How long is Guyton Swamp RD over Mill Creek?

The structure is 72 ft (21.9 m) long with a longest span of 19 ft (5.8 m) and a deck 27 ft wide.

Who owns Guyton Swamp RD over Mill Creek?

It is owned by the County Highway Agency.