US Bridges

US 59 Nbfr over San Jacinto River

Fair

Harris County, Texas · 1.7 MI N of FM 1960 · Structure no. 121020017706230

Built
2000
25 years old
Condition
Fair
inspected December 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
1,512 ft
18 main spans
Daily traffic
499
2022 count
Owner
State
State Highway Agency

About this bridge

US 59 Nbfr over San Jacinto River is a prestressed concrete stringer/multi-beam or girder carrying US 59 Nbfr over San Jacinto River in Harris County, Texas. It was built in 2000, so it is 25 years old, younger 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 499 vehicles a day, roughly 3% of them trucks, projected to reach 1,350 by 2042. The structure is 1,512 ft (460.9 m) long and 41 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesUS 59 Nbfr
CrossesSan Jacinto River
Location1.7 MI N of FM 1960
RouteU.S. Route 59
StateTexas
Coordinates30.02679, -95.25787
Functional classUrban 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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans18
Design loadHS 20
Structure length1,512 ft (460.9 m)
Longest span84 ft (25.6 m)
Deck width41 ft (12.4 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic499 (2022)
Projected traffic1,350 by 2042
Trucks3%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and waterway
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 statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$144,000
NavigationNo navigation control on waterway

Frequently asked questions

When was US 59 Nbfr over San Jacinto River built?

It was built in 2000, making it 25 years old in 2025.

What condition is US 59 Nbfr over San Jacinto 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 December 2024.

How much traffic does US 59 Nbfr over San Jacinto River carry?

About 499 vehicles per day (2022 count), of which roughly 3% are trucks.

How long is US 59 Nbfr over San Jacinto River?

The structure is 1,512 ft (460.9 m) long with a longest span of 84 ft (25.6 m) and a deck 41 ft wide.

Who owns US 59 Nbfr over San Jacinto River?

It is owned by the State Highway Agency.