US Bridges

Central Throughway over Beaver Bayou

Good

East Baton Rouge Parish, Louisiana · 1.0 MI S. of LA37 · Structure no. 611700000610337

Built
2011
14 years old
Condition
Good
inspected November 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
280 ft
7 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 continuous 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 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 10,400 vehicles a day, roughly 10% of them trucks, projected to reach 11,440 by 2039. The structure is 280 ft (85.3 m) long and 85 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesCentral Throughway
CrossesBeaver Bayou
Location1.0 MI S. of LA37
RouteCounty Highway 0
CountyEast Baton Rouge Parish
StateLouisiana
Coordinates30.50171, -91.02143
Functional classUrban Minor Arterial

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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating58.5 US tons
Inventory rating43.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans7
Design loadHS 20
Structure length280 ft (85.3 m)
Longest span40 ft (12.2 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 closed1.9 mi (3 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 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 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 280 ft (85.3 m) long with a longest span of 40 ft (12.2 m) and a deck 85 ft wide.

Who owns Central Throughway over Beaver Bayou?

It is owned by the County Highway Agency.