US Bridges

FM 1998 over Harrison Bayou

Fair

Harrison County, Texas · 2.85 MI W of FM 134 · Structure no. 191030192001002

Built
1920
105 years old, rebuilt 1955
Condition
Fair
inspected September 2023
Type
Tee Beam
Concrete
Length
31 ft
1 main span
Daily traffic
532
2020 count
Owner
State
State Highway Agency

About this bridge

FM 1998 over Harrison Bayou is a concrete tee beam carrying FM 1998 over Harrison Bayou in Harrison County, Texas. It was built in 1920 and reconstructed in 1955, so it is 105 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 532 vehicles a day, roughly 14% of them trucks, projected to reach 1,050 by 2033. The structure is 31 ft (9.4 m) long and 29 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesFM 1998
CrossesHarrison Bayou
Location2.85 MI W of FM 134
RouteState Highway 1998
CountyHarrison County
StateTexas
Coordinates32.53948, -94.18685
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation6: Equal to present minimum criteria
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 rating48.9 US tons
Inventory rating29 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length31 ft (9.4 m)
Longest span30 ft (9.1 m)
Deck width29 ft (8.9 m)
Roadway width26 ft (8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic532 (2020)
Projected traffic1,050 by 2033
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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 1998 over Harrison Bayou built?

It was built in 1920, making it 105 years old in 2025. It was reconstructed in 1955.

What condition is FM 1998 over Harrison Bayou 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 September 2023.

How much traffic does FM 1998 over Harrison Bayou carry?

About 532 vehicles per day (2020 count), of which roughly 14% are trucks.

How long is FM 1998 over Harrison Bayou?

The structure is 31 ft (9.4 m) long with a longest span of 30 ft (9.1 m) and a deck 29 ft wide.

Who owns FM 1998 over Harrison Bayou?

It is owned by the State Highway Agency.