US Bridges

US 59 NB over Trinity River

Fair

Polk County, Texas · At US 59 & Trinity River · Structure no. 111870017701090

Built
1965
60 years old, rebuilt 1994
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
1,810 ft
4 main spans
Daily traffic
13,006
2019 count
Owner
State
State Highway Agency

About this bridge

US 59 NB over Trinity River is a steel continuous stringer/multi-beam or girder carrying US 59 NB over Trinity River in Polk County, Texas. It was built in 1965 and reconstructed in 1994, so it is 60 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 5 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 13,006 vehicles a day, roughly 28% of them trucks, projected to reach 17,860 by 2033. The structure is 1,810 ft (551.7 m) long and 42 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesUS 59 NB
CrossesTrinity River
LocationAt US 59 & Trinity River
RouteU.S. Route 59
StateTexas
Coordinates30.5678, -94.95176
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61 US tons
Inventory rating37 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4 (+32 approach)
Design loadH 20
Structure length1,810 ft (551.7 m)
Longest span154 ft (46.9 m)
Deck width42 ft (12.9 m)
Roadway width39 ft (11.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,006 (2019)
Projected traffic17,860 by 2033
Trucks28%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkNon-Interstate STRAHNET route

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 US 59 NB over Trinity River built?

It was built in 1965, making it 60 years old in 2025. It was reconstructed in 1994.

What condition is US 59 NB over Trinity River 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 April 2024.

How much traffic does US 59 NB over Trinity River carry?

About 13,006 vehicles per day (2019 count), of which roughly 28% are trucks.

How long is US 59 NB over Trinity River?

The structure is 1,810 ft (551.7 m) long with a longest span of 154 ft (46.9 m) and a deck 42 ft wide.

Who owns US 59 NB over Trinity River?

It is owned by the State Highway Agency.