US Bridges

FM 77 over Long Hollow

Good

Gonzales County, Texas · 5.65 MI NE of US 87 · Structure no. 130900068701003

Built
1940
85 years old
Condition
Good
inspected January 2023
Type
Culvert
Concrete
Length
24 ft
3 main spans
Daily traffic
261
2020 count
Owner
State
State Highway Agency

About this bridge

FM 77 over Long Hollow is a concrete culvert carrying FM 77 over Long Hollow in Gonzales County, Texas. It was built in 1940, so it is 85 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 261 vehicles a day, roughly 10% of them trucks, projected to reach 660 by 2040. The structure is 24 ft (7.3 m) long and 36 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesFM 77
CrossesLong Hollow
Location5.65 MI NE of US 87
RouteState Highway 77
CountyGonzales County
StateTexas
Coordinates29.33541, -97.65967
Functional classRural Minor Collector

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 protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionJanuary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44 US tons
Inventory rating26 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length24 ft (7.3 m)
Longest span7 ft (2.1 m)
Deck width36 ft (11.1 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic261 (2020)
Projected traffic660 by 2040
Trucks10%
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 77 over Long Hollow built?

It was built in 1940, making it 85 years old in 2025.

What condition is FM 77 over Long Hollow 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 January 2023.

How much traffic does FM 77 over Long Hollow carry?

About 261 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is FM 77 over Long Hollow?

The structure is 24 ft (7.3 m) long with a longest span of 7 ft (2.1 m) and a deck 36 ft wide.

Who owns FM 77 over Long Hollow?

It is owned by the State Highway Agency.