US Bridges

Guidry RD over Nezipique Bayou Relief

Good

Allen Parish, Louisiana · 1.5 MI N of LA1159 · Structure no. 070200000500885

Built
2011
14 years old
Condition
Good
inspected October 2023
Type
Slab
Concrete
Length
100 ft
5 main spans
Daily traffic
36
2020 count
Owner
County
County Highway Agency

About this bridge

Guidry RD over Nezipique Bayou Relief is a concrete slab carrying Guidry RD over Nezipique Bayou Relief in Allen Parish, Louisiana. It was built in 2011, so it is 14 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 36 vehicles a day, projected to reach 39 by 2040. The structure is 100 ft (30.5 m) long and 27 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

Open in Google Maps
CarriesGuidry RD
CrossesNezipique Bayou Relief
Location1.5 MI N of LA1159
RouteCounty Highway 0
CountyAllen Parish
StateLouisiana
Coordinates30.5372, -92.60415
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 protection7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to 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 alignment6: Equal to present minimum criteria
Operating rating33.6 US tons
Inventory rating25.7 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length100 ft (30.5 m)
Longest span20 ft (6.1 m)
Deck width27 ft (8.2 m)
Roadway width23 ft (7.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic36 (2020)
Projected traffic39 by 2040
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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 Guidry RD over Nezipique Bayou Relief built?

It was built in 2011, making it 14 years old in 2025.

What condition is Guidry RD over Nezipique Bayou Relief 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 October 2023.

How much traffic does Guidry RD over Nezipique Bayou Relief carry?

About 36 vehicles per day (2020 count).

How long is Guidry RD over Nezipique Bayou Relief?

The structure is 100 ft (30.5 m) long with a longest span of 20 ft (6.1 m) and a deck 27 ft wide.

Who owns Guidry RD over Nezipique Bayou Relief?

It is owned by the County Highway Agency.