US Bridges

FM 1764 EB FR over Drainage Ditch No. 7B

Fair

Galveston County, Texas · 0.70 MI W of SH 146 · Structure no. 120850160701009

Built
1971
54 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Concrete
Length
96 ft
3 main spans
Daily traffic
1,212
2023 count
Owner
State
State Highway Agency

About this bridge

FM 1764 EB FR over Drainage Ditch No. 7B is a concrete stringer/multi-beam or girder carrying FM 1764 EB FR over Drainage Ditch No. 7B in Galveston County, Texas. It was built in 1971, so it is 54 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 1,212 vehicles a day, roughly 7% of them trucks, projected to reach 1,697 by 2042. The structure is 96 ft (29.3 m) long and 45 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesFM 1764 EB FR
CrossesDrainage Ditch No. 7B
Location0.70 MI W of SH 146
RouteState Highway 1764
CountyGalveston County
StateTexas
Coordinates29.39531, -94.96334
Functional classUrban Collector

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.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75 US tons
Inventory rating45 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length96 ft (29.3 m)
Longest span32 ft (9.8 m)
Deck width45 ft (13.7 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,212 (2023)
Projected traffic1,697 by 2042
Trucks7%
Lanes on structure2
Traffic directionOne-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 1764 EB FR over Drainage Ditch No. 7B built?

It was built in 1971, making it 54 years old in 2025.

What condition is FM 1764 EB FR over Drainage Ditch No. 7B 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 2024.

How much traffic does FM 1764 EB FR over Drainage Ditch No. 7B carry?

About 1,212 vehicles per day (2023 count), of which roughly 7% are trucks.

How long is FM 1764 EB FR over Drainage Ditch No. 7B?

The structure is 96 ft (29.3 m) long with a longest span of 32 ft (9.8 m) and a deck 45 ft wide.

Who owns FM 1764 EB FR over Drainage Ditch No. 7B?

It is owned by the State Highway Agency.