US Bridges

Robinson RD over Flanagan Bayou

PoorPosted for load

East Baton Rouge Parish, Louisiana · 1 MI N. Nw. of Pride LA · Structure no. 611730425905921

Built
1980
45 years old
Condition
Poor
inspected March 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
65 ft
4 main spans
Daily traffic
37
2024 count
Owner
County
County Highway Agency

About this bridge

Robinson RD over Flanagan Bayou is a wood or timber stringer/multi-beam or girder carrying Robinson RD over Flanagan Bayou in East Baton Rouge Parish, Louisiana. It was built in 1980, so it is 45 years old, older than the Louisiana average of 43 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 37 vehicles a day, projected to reach 40 by 2044. The structure is 65 ft (19.8 m) long and 20 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesRobinson RD
CrossesFlanagan Bayou
Location1 MI N. Nw. of Pride LA
RouteCounty Highway 0
Coordinates30.70791, -90.98718
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 2024
Inspection intervalevery 12 months
Operating statusPosted for load 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 adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating25 US tons
Inventory rating19.3 US tons

Structure

MaterialWood or Timber
DeckWood or timber
Main spans4
Design loadH 20
Structure length65 ft (19.8 m)
Longest span19 ft (5.8 m)
Deck width20 ft (6.2 m)
Roadway width19 ft (5.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic37 (2024)
Projected traffic40 by 2044
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$241,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Robinson RD over Flanagan Bayou built?

It was built in 1980, making it 45 years old in 2025.

What condition is Robinson RD over Flanagan Bayou in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in March 2024.

How much traffic does Robinson RD over Flanagan Bayou carry?

About 37 vehicles per day (2024 count).

How long is Robinson RD over Flanagan Bayou?

The structure is 65 ft (19.8 m) long with a longest span of 19 ft (5.8 m) and a deck 20 ft wide.

Who owns Robinson RD over Flanagan Bayou?

It is owned by the County Highway Agency.