US Bridges

SH 99 Wbml over E Fork San Jacinto River

Good

Montgomery County, Texas · 0.3 MI E of FM 1485 · Structure no. 121700351007293

Built
2022
3 years old
Condition
Good
inspected December 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
1,144 ft
10 main spans
Daily traffic
15,700
2019 count
Owner
State
State Highway Agency

About this bridge

SH 99 Wbml over E Fork San Jacinto River is a prestressed concrete stringer/multi-beam or girder carrying SH 99 Wbml over E Fork San Jacinto River in Montgomery County, Texas. It was built in 2022, so it is 3 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 15,700 vehicles a day, roughly 5% of them trucks, projected to reach 1 by 1900. The structure is 1,144 ft (348.7 m) long and 40 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesSH 99 Wbml
CrossesE Fork San Jacinto River
Location0.3 MI E of FM 1485
RouteState Highway 99
StateTexas
Coordinates30.14641, -95.12478
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
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 alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans10
Design loadHL 93
Structure length1,144 ft (348.7 m)
Longest span115 ft (35.1 m)
Deck width40 ft (12.2 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,700 (2019)
Projected traffic1 by 1900
Trucks5%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollToll bridge
National Highway SystemYes

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 99 Wbml over E Fork San Jacinto River built?

It was built in 2022, making it 3 years old in 2025.

What condition is SH 99 Wbml over E Fork 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 99 Wbml over E Fork San Jacinto River carry?

About 15,700 vehicles per day (2019 count), of which roughly 5% are trucks.

How long is SH 99 Wbml over E Fork San Jacinto River?

The structure is 1,144 ft (348.7 m) long with a longest span of 115 ft (35.1 m) and a deck 40 ft wide.

Who owns SH 99 Wbml over E Fork San Jacinto River?

It is owned by the State Highway Agency.