US Bridges

Central Throughway over Beaver Bayou

Fair

East Baton Rouge Parish, Louisiana · 2.0 Mi. N. of US190 · Structure no. 611700000610334

Built
2011
14 years old
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
2,057 ft
24 main spans
Daily traffic
10,400
2019 count
Owner
County
County Highway Agency

About this bridge

Central Throughway over Beaver Bayou is a prestressed concrete stringer/multi-beam or girder carrying Central Throughway over Beaver Bayou in East Baton Rouge 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 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 10,400 vehicles a day, roughly 10% of them trucks, projected to reach 11,440 by 2039. The structure is 2,057 ft (627 m) long and 85 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesCentral Throughway
CrossesBeaver Bayou
Location2.0 Mi. N. of US190
RouteCounty Highway 0
CountyEast Baton Rouge Parish
StateLouisiana
Coordinates30.49162, -91.01953
Functional classUrban Minor Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating45.7 US tons
Inventory rating33.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans24
Design loadHS 20
Structure length2,057 ft (627 m)
Longest span130 ft (39.6 m)
Deck width85 ft (25.9 m)
Roadway width82 ft (25 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,400 (2019)
Projected traffic11,440 by 2039
Trucks10%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Central Throughway over Beaver Bayou built?

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

What condition is Central Throughway over Beaver 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 November 2023.

How much traffic does Central Throughway over Beaver Bayou carry?

About 10,400 vehicles per day (2019 count), of which roughly 10% are trucks.

How long is Central Throughway over Beaver Bayou?

The structure is 2,057 ft (627 m) long with a longest span of 130 ft (39.6 m) and a deck 85 ft wide.

Who owns Central Throughway over Beaver Bayou?

It is owned by the County Highway Agency.