US Bridges

US 59 W Conn over San Jacinto River Relief

Good

Harris County, Texas · 1.0 MI N of FM 1960 · Structure no. 121020017706226

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

About this bridge

US 59 W Conn over San Jacinto River Relief is a prestressed concrete stringer/multi-beam or girder carrying US 59 W Conn over San Jacinto River Relief 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 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 499 vehicles a day, roughly 3% of them trucks, projected to reach 15,395 by 2041. The structure is 240 ft (73.2 m) long and 36 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesUS 59 W Conn
CrossesSan Jacinto River Relief
Location1.0 MI N of FM 1960
RouteU.S. Route 59
StateTexas
Coordinates30.02083, -95.26247
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating60 US tons
Inventory rating36 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1 (+2 approach)
Design loadHS 20
Structure length240 ft (73.2 m)
Longest span100 ft (30.5 m)
Deck width36 ft (10.9 m)
Roadway width33 ft (10.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic499 (2022)
Projected traffic15,395 by 2041
Trucks3%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesRelief for waterway
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 statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was US 59 W Conn over San Jacinto River Relief built?

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

What condition is US 59 W Conn over San Jacinto River Relief 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 December 2024.

How much traffic does US 59 W Conn over San Jacinto River Relief carry?

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

How long is US 59 W Conn over San Jacinto River Relief?

The structure is 240 ft (73.2 m) long with a longest span of 100 ft (30.5 m) and a deck 36 ft wide.

Who owns US 59 W Conn over San Jacinto River Relief?

It is owned by the State Highway Agency.