US Bridges

Groom RD over Cypress Bayou

Fair

East Baton Rouge Parish, Louisiana · 0.3 M W of LA 19 · Structure no. 611730353911041

Built
1977
48 years old
Condition
Fair
inspected June 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
201 ft
4 main spans
Daily traffic
2,522
2019 count
Owner
County
County Highway Agency

About this bridge

Groom RD over Cypress Bayou is a prestressed concrete stringer/multi-beam or girder carrying Groom RD over Cypress Bayou in East Baton Rouge Parish, Louisiana. It was built in 1977, so it is 48 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 6 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 2,522 vehicles a day, projected to reach 2,774 by 2039. The structure is 201 ft (61.3 m) long and 38 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesGroom RD
CrossesCypress Bayou
Location0.3 M W of LA 19
RouteCounty Highway 0
CountyEast Baton Rouge Parish
StateLouisiana
Coordinates30.58871, -91.1738
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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating79.7 US tons
Inventory rating49.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length201 ft (61.3 m)
Longest span50 ft (15.2 m)
Deck width38 ft (11.7 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,522 (2019)
Projected traffic2,774 by 2039
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 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 Groom RD over Cypress Bayou built?

It was built in 1977, making it 48 years old in 2025.

What condition is Groom RD over Cypress 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 June 2023.

How much traffic does Groom RD over Cypress Bayou carry?

About 2,522 vehicles per day (2019 count).

How long is Groom RD over Cypress Bayou?

The structure is 201 ft (61.3 m) long with a longest span of 50 ft (15.2 m) and a deck 38 ft wide.

Who owns Groom RD over Cypress Bayou?

It is owned by the County Highway Agency.