US Bridges

SH 3 over Drainage Ditch No 7B

Good

Galveston County, Texas · 0.25 MI NW of FM 1765 · Structure no. 120850005103041

Built
1980
45 years old
Condition
Good
inspected November 2024
Type
Culvert
Concrete
Length
33 ft
3 main spans
Daily traffic
9,954
2016 count
Owner
State
State Highway Agency

About this bridge

SH 3 over Drainage Ditch No 7B is a concrete culvert carrying SH 3 over Drainage Ditch No 7B in Galveston County, Texas. It was built in 1980, so it is 45 years old, older than the Texas average of 44.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 9,954 vehicles a day, roughly 6% of them trucks, projected to reach 12,240 by 2033. The structure is 33 ft (10.1 m) long and 101 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesSH 3
CrossesDrainage Ditch No 7B
Location0.25 MI NW of FM 1765
RouteState Highway 3
StateTexas
Coordinates29.38198, -94.97295
Functional classUrban Other Principal Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionNovember 2024
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44.6 US tons
Inventory rating26.6 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length33 ft (10.1 m)
Longest span10 ft (3 m)
Deck width101 ft (30.7 m)
Roadway width81 ft (24.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,954 (2016)
Projected traffic12,240 by 2033
Trucks6%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was SH 3 over Drainage Ditch No 7B built?

It was built in 1980, making it 45 years old in 2025.

What condition is SH 3 over Drainage Ditch No 7B in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in November 2024.

How much traffic does SH 3 over Drainage Ditch No 7B carry?

About 9,954 vehicles per day (2016 count), of which roughly 6% are trucks.

How long is SH 3 over Drainage Ditch No 7B?

The structure is 33 ft (10.1 m) long with a longest span of 10 ft (3 m) and a deck 101 ft wide.

Who owns SH 3 over Drainage Ditch No 7B?

It is owned by the State Highway Agency.