US Bridges

IH 10 WB on Rp over IH 10 WB San Jacinto Ext

Fair

Harris County, Texas · 0.75 MI W of US 59 · Structure no. 121020050801205

Built
1971
54 years old
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
599 ft
8 main spans
Daily traffic
13,690
2013 count
Owner
State
State Highway Agency

About this bridge

IH 10 WB on Rp over IH 10 WB San Jacinto Ext is a prestressed concrete stringer/multi-beam or girder carrying IH 10 WB on Rp over IH 10 WB San Jacinto Ext in Harris County, Texas. It was built in 1971, so it is 54 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 13,690 vehicles a day, roughly 5% of them trucks, projected to reach 19,160 by 2033. The structure is 599 ft (182.6 m) long and 34 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesIH 10 WB on Rp
CrossesIH 10 WB San Jacinto Ext
Location0.75 MI W of US 59
RouteInterstate 10
StateTexas
Coordinates29.76976, -95.35317
Functional classUrban Principal Arterial - Interstate

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.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating27 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans8
Design loadHS 20
Structure length599 ft (182.6 m)
Longest span79 ft (24.1 m)
Deck width34 ft (10.3 m)
Roadway width31 ft (9.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,690 (2013)
Projected traffic19,160 by 2033
Trucks5%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$45,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was IH 10 WB on Rp over IH 10 WB San Jacinto Ext built?

It was built in 1971, making it 54 years old in 2025.

What condition is IH 10 WB on Rp over IH 10 WB San Jacinto Ext 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 October 2024.

How much traffic does IH 10 WB on Rp over IH 10 WB San Jacinto Ext carry?

About 13,690 vehicles per day (2013 count), of which roughly 5% are trucks.

How long is IH 10 WB on Rp over IH 10 WB San Jacinto Ext?

The structure is 599 ft (182.6 m) long with a longest span of 79 ft (24.1 m) and a deck 34 ft wide.

Who owns IH 10 WB on Rp over IH 10 WB San Jacinto Ext?

It is owned by the State Highway Agency.