US Bridges

US 59 SB On-Rp over US 59 SB Off-Rp & Sj Rel

Fair

Harris County, Texas · 1.05 MI N of FM 1960 · Structure no. 121020017706234

Built
2002
23 years old
Condition
Fair
inspected December 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
1,400 ft
12 main spans
Daily traffic
12,375
2021 count
Owner
State
State Highway Agency

About this bridge

US 59 SB On-Rp over US 59 SB Off-Rp & Sj Rel is a prestressed concrete stringer/multi-beam or girder carrying US 59 SB On-Rp over US 59 SB Off-Rp & Sj Rel in Harris County, Texas. It was built in 2002, so it is 23 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 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 12,375 vehicles a day, roughly 3% of them trucks, projected to reach 17,325 by 2041. The structure is 1,400 ft (426.7 m) long and 27 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesUS 59 SB On-Rp
CrossesUS 59 SB Off-Rp & Sj Rel
Location1.05 MI N of FM 1960
RouteU.S. Route 59
StateTexas
Coordinates30.02061, -95.2616
Functional classUrban Principal Arterial - Other Freeway or Expressway

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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionDecember 2024
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 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, cast-in-place
Main spans12
Design loadHS 20
Structure length1,400 ft (426.7 m)
Longest span120 ft (36.6 m)
Deck width27 ft (8.2 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,375 (2021)
Projected traffic17,325 by 2041
Trucks3%
Lanes on structure1
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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was US 59 SB On-Rp over US 59 SB Off-Rp & Sj Rel built?

It was built in 2002, making it 23 years old in 2025.

What condition is US 59 SB On-Rp over US 59 SB Off-Rp & Sj Rel 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 SB On-Rp over US 59 SB Off-Rp & Sj Rel carry?

About 12,375 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is US 59 SB On-Rp over US 59 SB Off-Rp & Sj Rel?

The structure is 1,400 ft (426.7 m) long with a longest span of 120 ft (36.6 m) and a deck 27 ft wide.

Who owns US 59 SB On-Rp over US 59 SB Off-Rp & Sj Rel?

It is owned by the State Highway Agency.