US Bridges

Summers RD over Cow Bayou

Fair

Richland Parish, Louisiana · 0.63 MI from 208 to 214 · Structure no. 054232238914101

Built
1989
36 years old
Condition
Fair
inspected August 2023
Type
Culvert
Concrete
Length
22 ft
3 main spans
Daily traffic
40
1973 count
Owner
County
County Highway Agency

About this bridge

Summers RD over Cow Bayou is a concrete culvert carrying Summers RD over Cow Bayou in Richland Parish, Louisiana. It was built in 1989, so it is 36 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 40 vehicles a day, projected to reach 44 by 1993. The structure is 22 ft (6.7 m) long and 40 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesSummers RD
CrossesCow Bayou
Location0.63 MI from 208 to 214
RouteCounty Highway 0
CountyRichland Parish
StateLouisiana
Coordinates32.3967, -91.68393
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 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 geometry9: Superior to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating27.9 US tons
Inventory rating21.4 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length22 ft (6.7 m)
Longest span7 ft (2.1 m)
Deck width40 ft (12.2 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic40 (1973)
Projected traffic44 by 1993
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 statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Summers RD over Cow Bayou built?

It was built in 1989, making it 36 years old in 2025.

What condition is Summers RD over Cow 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 August 2023.

How much traffic does Summers RD over Cow Bayou carry?

About 40 vehicles per day (1973 count).

How long is Summers RD over Cow Bayou?

The structure is 22 ft (6.7 m) long with a longest span of 7 ft (2.1 m) and a deck 40 ft wide.

Who owns Summers RD over Cow Bayou?

It is owned by the County Highway Agency.