US Bridges

Monger Road over Chene Bayou

Fair

Jefferson Davis Parish, Louisiana · 0.2 M E of Farm Supply RD · Structure no. 072730124924321

Built
1979
46 years old
Condition
Fair
inspected July 2024
Type
Channel Beam
Prestressed Concrete
Length
108 ft
4 main spans
Daily traffic
110
2019 count
Owner
County
County Highway Agency

About this bridge

Monger Road over Chene Bayou is a prestressed concrete channel beam carrying Monger Road over Chene Bayou in Jefferson Davis Parish, Louisiana. It was built in 1979, so it is 46 years old, older than the Louisiana average of 43 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 110 vehicles a day, projected to reach 121 by 2039. The structure is 108 ft (32.9 m) long and 22 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesMonger Road
CrossesChene Bayou
Location0.2 M E of Farm Supply RD
RouteCounty Highway 0
CountyJefferson Davis Parish
StateLouisiana
Coordinates30.20697, -92.72035
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating26.1 US tons
Inventory rating13.9 US tons

Structure

Structure typeChannel Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans4
Design loadHS 20
Structure length108 ft (32.9 m)
Longest span27 ft (8.2 m)
Deck width22 ft (6.8 m)
Roadway width21 ft (6.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic110 (2019)
Projected traffic121 by 2039
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 Monger Road over Chene Bayou built?

It was built in 1979, making it 46 years old in 2025.

What condition is Monger Road over Chene Bayou in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in July 2024.

How much traffic does Monger Road over Chene Bayou carry?

About 110 vehicles per day (2019 count).

How long is Monger Road over Chene Bayou?

The structure is 108 ft (32.9 m) long with a longest span of 27 ft (8.2 m) and a deck 22 ft wide.

Who owns Monger Road over Chene Bayou?

It is owned by the County Highway Agency.