US Bridges

FM 1798 over Robinson Branch

Good

Rusk County, Texas · 1.8 MI N of FM 348 · Structure no. 102010042405023

Built
1966
59 years old
Condition
Good
inspected May 2023
Type
Culvert
Concrete
Length
23 ft
2 main spans
Daily traffic
663
2018 count
Owner
State
State Highway Agency

About this bridge

FM 1798 over Robinson Branch is a concrete culvert carrying FM 1798 over Robinson Branch in Rusk County, Texas. It was built in 1966, so it is 59 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 663 vehicles a day, roughly 26% of them trucks, projected to reach 460 by 2033. The structure is 23 ft (7 m) long and 40 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesFM 1798
CrossesRobinson Branch
Location1.8 MI N of FM 348
RouteState Highway 1798
StateTexas
Coordinates32.12914, -94.5893
Functional classRural Major 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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to 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 spans2
Design loadHS 20
Structure length23 ft (7 m)
Longest span10 ft (3 m)
Deck width40 ft (12.2 m)
Roadway width23 ft (7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic663 (2018)
Projected traffic460 by 2033
Trucks26%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 1798 over Robinson Branch built?

It was built in 1966, making it 59 years old in 2025.

What condition is FM 1798 over Robinson Branch 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 May 2023.

How much traffic does FM 1798 over Robinson Branch carry?

About 663 vehicles per day (2018 count), of which roughly 26% are trucks.

How long is FM 1798 over Robinson Branch?

The structure is 23 ft (7 m) long with a longest span of 10 ft (3 m) and a deck 40 ft wide.

Who owns FM 1798 over Robinson Branch?

It is owned by the State Highway Agency.