US Bridges

SH 146 NB over FM 1764

Good

Galveston County, Texas · 1.10 MI N of FM 1765 · Structure no. 120850038906065

Built
1971
54 years old
Condition
Good
inspected August 2022
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
386 ft
6 main spans
Daily traffic
6,595
2019 count
Owner
State
State Highway Agency

About this bridge

SH 146 NB over FM 1764 is a prestressed concrete stringer/multi-beam or girder carrying SH 146 NB over FM 1764 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 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 6,595 vehicles a day, roughly 8% of them trucks, projected to reach 8,430 by 2033. The structure is 386 ft (117.7 m) long and 50 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesSH 146 NB
CrossesFM 1764
Location1.10 MI N of FM 1765
RouteState Highway 146
StateTexas
Coordinates29.39535, -94.95102
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionAugust 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75 US tons
Inventory rating37 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20
Structure length386 ft (117.7 m)
Longest span73 ft (22.3 m)
Deck width50 ft (15.1 m)
Roadway width47 ft (14.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,595 (2019)
Projected traffic8,430 by 2033
Trucks8%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was SH 146 NB over FM 1764 built?

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

What condition is SH 146 NB over FM 1764 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 August 2022.

How much traffic does SH 146 NB over FM 1764 carry?

About 6,595 vehicles per day (2019 count), of which roughly 8% are trucks.

How long is SH 146 NB over FM 1764?

The structure is 386 ft (117.7 m) long with a longest span of 73 ft (22.3 m) and a deck 50 ft wide.

Who owns SH 146 NB over FM 1764?

It is owned by the State Highway Agency.