US Bridges

Topsy Bel RD over Little Marsh Bayou

Fair

Allen Parish, Louisiana · 5.6 MI South of US 190 · Structure no. 070230265930631

Built
2000
25 years old
Condition
Fair
inspected October 2023
Type
Slab
Concrete
Length
95 ft
5 main spans
Daily traffic
925
2023 count
Owner
County
County Highway Agency

About this bridge

Topsy Bel RD over Little Marsh Bayou is a concrete slab carrying Topsy Bel RD over Little Marsh Bayou in Allen Parish, Louisiana. It was built in 2000, so it is 25 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 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 925 vehicles a day, projected to reach 1,017 by 2043. The structure is 95 ft (29 m) long and 31 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesTopsy Bel RD
CrossesLittle Marsh Bayou
Location5.6 MI South of US 190
RouteCounty Highway 0
CountyAllen Parish
StateLouisiana
Coordinates30.44225, -93.10626
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2023
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating53.6 US tons
Inventory rating41.4 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans5
Design loadHS 20
Structure length95 ft (29 m)
Longest span19 ft (5.8 m)
Deck width31 ft (9.4 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic925 (2023)
Projected traffic1,017 by 2043
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 Topsy Bel RD over Little Marsh Bayou built?

It was built in 2000, making it 25 years old in 2025.

What condition is Topsy Bel RD over Little Marsh 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 October 2023.

How much traffic does Topsy Bel RD over Little Marsh Bayou carry?

About 925 vehicles per day (2023 count).

How long is Topsy Bel RD over Little Marsh Bayou?

The structure is 95 ft (29 m) long with a longest span of 19 ft (5.8 m) and a deck 31 ft wide.

Who owns Topsy Bel RD over Little Marsh Bayou?

It is owned by the County Highway Agency.