US Bridges

By Grosse Tete Xng over Bayou Grosse Tete

Fair

Iberville Parish, Louisiana · 0.01 Mi. W of LA 411 · Structure no. 612430279912961

Built
1967
58 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
185 ft
1 main span
Daily traffic
960
2019 count
Owner
County
County Highway Agency

About this bridge

By Grosse Tete Xng over Bayou Grosse Tete is a steel stringer/multi-beam or girder carrying By Grosse Tete Xng over Bayou Grosse Tete in Iberville Parish, Louisiana. It was built in 1967, so it is 58 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 960 vehicles a day, projected to reach 1,056 by 2039. The structure is 185 ft (56.4 m) long and 30 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesBy Grosse Tete Xng
CrossesBayou Grosse Tete
Location0.01 Mi. W of LA 411
RouteCounty Highway 0
CountyIberville Parish
StateLouisiana
Coordinates30.46535, -91.4945
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating28.9 US tons
Inventory rating22.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckOpen grating
Main spans1 (+7 approach)
Design loadHS 20
Structure length185 ft (56.4 m)
Longest span45 ft (13.7 m)
Deck width30 ft (9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic960 (2019)
Projected traffic1,056 by 2039
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 By Grosse Tete Xng over Bayou Grosse Tete built?

It was built in 1967, making it 58 years old in 2025.

What condition is By Grosse Tete Xng over Bayou Grosse Tete 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 August 2024.

How much traffic does By Grosse Tete Xng over Bayou Grosse Tete carry?

About 960 vehicles per day (2019 count).

How long is By Grosse Tete Xng over Bayou Grosse Tete?

The structure is 185 ft (56.4 m) long with a longest span of 45 ft (13.7 m) and a deck 30 ft wide.

Who owns By Grosse Tete Xng over Bayou Grosse Tete?

It is owned by the County Highway Agency.