US Bridges

SH 99 over Long Point Slough

Good

Fort Bend County, Texas · 0.25 MI S of FM 1093 · Structure no. 120800351004014

Built
1994
31 years old
Condition
Good
inspected December 2024
Type
Culvert
Concrete
Length
35 ft
3 main spans
Daily traffic
43,936
2023 count
Owner
Toll Authority
Local Toll Authority

About this bridge

SH 99 over Long Point Slough is a concrete culvert carrying SH 99 over Long Point Slough in Fort Bend County, Texas. It was built in 1994, so it is 31 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 43,936 vehicles a day, roughly 6% of them trucks, projected to reach 61,510 by 2042. The structure is 35 ft (10.7 m) long. If it were closed, the detour would be 8.1 mi (13 km).

CarriesSH 99
CrossesLong Point Slough
Location0.25 MI S of FM 1093
RouteState Highway 99
StateTexas
Coordinates29.69699, -95.77498
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
Channel and channel protection7 GoodSome minor problems.
Culvert7 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
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating27 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadUnknown
Structure length35 ft (10.7 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic43,936 (2023)
Projected traffic61,510 by 2042
Trucks6%
Lanes on structure9
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 km)
TollOn a toll road
National Highway SystemYes

Ownership and planned work

OwnerLocal Toll Authority
Maintained byLocal Toll Authority
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 over Long Point Slough built?

It was built in 1994, making it 31 years old in 2025.

What condition is SH 99 over Long Point Slough 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 over Long Point Slough carry?

About 43,936 vehicles per day (2023 count), of which roughly 6% are trucks.

How long is SH 99 over Long Point Slough?

The structure is 35 ft (10.7 m) long with a longest span of 10 ft (3 m).

Who owns SH 99 over Long Point Slough?

It is owned by the Local Toll Authority.