US Bridges

Clyde Pace-Vivian over Old Black Bayou

Fair

Caddo Parish, Louisiana · 2.6 Mi. South of LA 170 · Structure no. 040932470935801

Built
1997
28 years old
Condition
Fair
inspected March 2023
Type
Slab
Concrete
Length
133 ft
7 main spans
Daily traffic
133
2019 count
Owner
County
County Highway Agency

About this bridge

Clyde Pace-Vivian over Old Black Bayou is a concrete slab carrying Clyde Pace-Vivian over Old Black Bayou in Caddo Parish, Louisiana. It was built in 1997, so it is 28 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 133 vehicles a day, projected to reach 146 by 2039. The structure is 133 ft (40.5 m) long and 31 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesClyde Pace-Vivian
CrossesOld Black Bayou
Location2.6 Mi. South of LA 170
RouteCounty Highway 0
CountyCaddo Parish
StateLouisiana
Coordinates32.78418, -93.92712
Functional classRural 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating60.7 US tons
Inventory rating46.7 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans7
Design loadHS 20
Structure length133 ft (40.5 m)
Longest span19 ft (5.8 m)
Deck width31 ft (9.5 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic133 (2019)
Projected traffic146 by 2039
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 statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Clyde Pace-Vivian over Old Black Bayou built?

It was built in 1997, making it 28 years old in 2025.

What condition is Clyde Pace-Vivian over Old Black 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 March 2023.

How much traffic does Clyde Pace-Vivian over Old Black Bayou carry?

About 133 vehicles per day (2019 count).

How long is Clyde Pace-Vivian over Old Black Bayou?

The structure is 133 ft (40.5 m) long with a longest span of 19 ft (5.8 m) and a deck 31 ft wide.

Who owns Clyde Pace-Vivian over Old Black Bayou?

It is owned by the County Highway Agency.