US Bridges

SH 146 over Drainage Ditch #14

Fair

Galveston County, Texas · 0.45 MI N of FM 1765 · Structure no. 120850038906033

Built
1947
78 years old, rebuilt 1991
Condition
Fair
inspected August 2024
Type
Slab
Concrete
Length
50 ft
2 main spans
Daily traffic
12,996
2020 count
Owner
State
State Highway Agency

About this bridge

SH 146 over Drainage Ditch #14 is a concrete slab carrying SH 146 over Drainage Ditch #14 in Galveston County, Texas. It was built in 1947 and reconstructed in 1991, so it is 78 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 12,996 vehicles a day, roughly 8% of them trucks, projected to reach 16,600 by 2033. The structure is 50 ft (15.2 m) long and 81 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesSH 146
CrossesDrainage Ditch #14
Location0.45 MI N of FM 1765
RouteState Highway 146
CountyGalveston County
StateTexas
Coordinates29.3856, -94.95109
Functional classUrban Other Principal 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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.1 US tons
Inventory rating28.8 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadH 20
Structure length50 ft (15.2 m)
Longest span25 ft (7.6 m)
Deck width81 ft (24.6 m)
Roadway width78 ft (23.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,996 (2020)
Projected traffic16,600 by 2033
Trucks8%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemYes

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 SH 146 over Drainage Ditch #14 built?

It was built in 1947, making it 78 years old in 2025. It was reconstructed in 1991.

What condition is SH 146 over Drainage Ditch #14 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 SH 146 over Drainage Ditch #14 carry?

About 12,996 vehicles per day (2020 count), of which roughly 8% are trucks.

How long is SH 146 over Drainage Ditch #14?

The structure is 50 ft (15.2 m) long with a longest span of 25 ft (7.6 m) and a deck 81 ft wide.

Who owns SH 146 over Drainage Ditch #14?

It is owned by the State Highway Agency.