US Bridges

SH 242 WB over San Jacinto River

Good

Montgomery County, Texas · 3.60 MI E of IH45 · Structure no. 121700353801391

Built
2021
4 years old
Condition
Good
inspected December 2024
Type
Other
Other
Length
4,781 ft
47 main spans
Daily traffic
47,121
2023 count
Owner
State
State Highway Agency

About this bridge

SH 242 WB over San Jacinto River is a other other carrying SH 242 WB over San Jacinto River in Montgomery County, Texas. It was built in 2021, so it is 4 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 47,121 vehicles a day, roughly 2% of them trucks, projected to reach 65,969 by 2042. The structure is 4,781 ft (1,457.2 m) long and 60 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesSH 242 WB
CrossesSan Jacinto River
Location3.60 MI E of IH45
RouteState Highway 242
StateTexas
Coordinates30.21076, -95.39768
Functional classUrban Minor Arterial

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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeOther
MaterialOther
DeckConcrete, cast-in-place
Main spans47
Design loadHL 93
Structure length4,781 ft (1,457.2 m)
Longest span120 ft (36.6 m)
Deck width60 ft (18.2 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic47,121 (2023)
Projected traffic65,969 by 2042
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was SH 242 WB over San Jacinto River built?

It was built in 2021, making it 4 years old in 2025.

What condition is SH 242 WB over San Jacinto River 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 SH 242 WB over San Jacinto River carry?

About 47,121 vehicles per day (2023 count), of which roughly 2% are trucks.

How long is SH 242 WB over San Jacinto River?

The structure is 4,781 ft (1,457.2 m) long with a longest span of 120 ft (36.6 m) and a deck 60 ft wide.

Who owns SH 242 WB over San Jacinto River?

It is owned by the State Highway Agency.