US Bridges

Fdr 511 over Conner Creek

Fair

Houston County, Texas · 1.5 MI N of SH7 · Structure no. 081303000003032

Built
1977
48 years old
Condition
Fair
inspected April 2023
Type
Slab
Concrete
Length
74 ft
2 main spans
Daily traffic
50
1991 count
Owner
Federal
U.S. Forest Service

About this bridge

Fdr 511 over Conner Creek is a concrete slab carrying Fdr 511 over Conner Creek in Houston County, Texas. It was built in 1977, so it is 48 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 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 50 vehicles a day, projected to reach 50 by 2011. The structure is 74 ft (22.6 m) long and 26 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesFdr 511
CrossesConner Creek
Location1.5 MI N of SH7
RouteFederal Lands Road 511.7
CountyHouston County
StateTexas
Coordinates31.40713, -95.05499
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
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 geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating26.8 US tons
Inventory rating20.7 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans2
Design loadHS 20
Structure length74 ft (22.6 m)
Longest span39 ft (11.9 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.3 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 closed3.7 mi (6 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$462 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Fdr 511 over Conner Creek built?

It was built in 1977, making it 48 years old in 2025.

What condition is Fdr 511 over Conner Creek 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 511 over Conner Creek carry?

About 50 vehicles per day (1991 count).

How long is Fdr 511 over Conner Creek?

The structure is 74 ft (22.6 m) long with a longest span of 39 ft (11.9 m) and a deck 26 ft wide.

Who owns Fdr 511 over Conner Creek?

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