US Bridges

Fdr 513 over South Cochino Bayou

Fair

Houston County, Texas · 1 MI N SH7 @kennard · Structure no. 081303000003033

Built
1966
59 years old
Condition
Fair
inspected April 2023
Type
Channel Beam
Concrete
Length
35 ft
1 main span
Daily traffic
50
1991 count
Owner
Federal
U.S. Forest Service

About this bridge

Fdr 513 over South Cochino Bayou is a concrete channel beam carrying Fdr 513 over South Cochino Bayou in Houston County, Texas. It was built in 1966, so it is 59 years old, older than the Texas average of 44.4 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 50 vehicles a day, projected to reach 50 by 2011. The structure is 35 ft (10.7 m) long and 18 ft wide. If it were closed, the detour would be 5.6 mi (9 km).

Location

Open in Google Maps
CarriesFdr 513
CrossesSouth Cochino Bayou
Location1 MI N SH7 @kennard
RouteFederal Lands Road 513.3
CountyHouston County
StateTexas
Coordinates31.36997, -95.18576
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44 US tons
Inventory rating34 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length35 ft (10.7 m)
Longest span34 ft (10.4 m)
Deck width18 ft (5.5 m)
Roadway width17 ft (5.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (1991)
Projected traffic50 by 2011
Trucks—
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5.6 mi (9 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerU.S. Forest Service
Maintained byU.S. Forest Service
Historic statusHistorical significance not determinable at this time
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$222 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Fdr 513 over South Cochino Bayou built?

It was built in 1966, making it 59 years old in 2025.

What condition is Fdr 513 over South Cochino 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 April 2023.

How much traffic does Fdr 513 over South Cochino Bayou carry?

About 50 vehicles per day (1991 count).

How long is Fdr 513 over South Cochino Bayou?

The structure is 35 ft (10.7 m) long with a longest span of 34 ft (10.4 m) and a deck 18 ft wide.

Who owns Fdr 513 over South Cochino Bayou?

It is owned by the U.S. Forest Service.