US Bridges

FM 1006 over Harms Bayou

Fair

Orange County, Texas · 0.50 MI E of FM 2177 · Structure no. 201810088202001

Built
1948
77 years old, rebuilt 1997
Condition
Fair
inspected March 2024
Type
Slab
Concrete Continuous
Length
80 ft
3 main spans
Daily traffic
3,185
2016 count
Owner
State
State Highway Agency

About this bridge

FM 1006 over Harms Bayou is a concrete continuous slab carrying FM 1006 over Harms Bayou in Orange County, Texas. It was built in 1948 and reconstructed in 1997, so it is 77 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 3,185 vehicles a day, roughly 6% of them trucks, projected to reach 4,620 by 2033. The structure is 80 ft (24.4 m) long and 46 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesFM 1006
CrossesHarms Bayou
Location0.50 MI E of FM 2177
RouteState Highway 1006
StateTexas
Coordinates30.0656, -93.74733
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2024
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 alignment8: Equal to present desirable criteria
Operating rating48.9 US tons
Inventory rating29 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length80 ft (24.4 m)
Longest span30 ft (9.1 m)
Deck width46 ft (14 m)
Roadway width44 ft (13.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,185 (2016)
Projected traffic4,620 by 2033
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was FM 1006 over Harms Bayou built?

It was built in 1948, making it 77 years old in 2025. It was reconstructed in 1997.

What condition is FM 1006 over Harms 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 2024.

How much traffic does FM 1006 over Harms Bayou carry?

About 3,185 vehicles per day (2016 count), of which roughly 6% are trucks.

How long is FM 1006 over Harms Bayou?

The structure is 80 ft (24.4 m) long with a longest span of 30 ft (9.1 m) and a deck 46 ft wide.

Who owns FM 1006 over Harms Bayou?

It is owned by the State Highway Agency.