US Bridges

SH 99 over Ind. Spur/Uprr/Lyn Canal

Good

Liberty County, Texas · 1.89 MI N of SH 146 · Structure no. 201460351007333

Built
2022
3 years old
Condition
Good
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
6,289 ft
4 main spans
Daily traffic
3,800
2022 count
Owner
State
State Highway Agency

About this bridge

SH 99 over Ind. Spur/Uprr/Lyn Canal is a steel continuous stringer/multi-beam or girder carrying SH 99 over Ind. Spur/Uprr/Lyn Canal in Liberty 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 3,800 vehicles a day, roughly 10% of them trucks, projected to reach 10,000 by 2049. The structure is 6,289 ft (1,916.9 m) long and 46 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesSH 99
CrossesInd. Spur/Uprr/Lyn Canal
Location1.89 MI N of SH 146
RouteState Highway 99
CountyLiberty County
StateTexas
Coordinates29.89446, -94.9105
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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJuly 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

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4 (+46 approach)
Design loadHL 93
Structure length6,289 ft (1,916.9 m)
Longest span284 ft (86.6 m)
Deck width46 ft (14 m)
Roadway width44 ft (13.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,800 (2022)
Projected traffic10,000 by 2049
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad and waterway
Detour if closed8.1 mi (13 km)
TollToll bridge
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 Ind. Spur/Uprr/Lyn Canal built?

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

What condition is SH 99 over Ind. Spur/Uprr/Lyn Canal 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 July 2024.

How much traffic does SH 99 over Ind. Spur/Uprr/Lyn Canal carry?

About 3,800 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is SH 99 over Ind. Spur/Uprr/Lyn Canal?

The structure is 6,289 ft (1,916.9 m) long with a longest span of 284 ft (86.6 m) and a deck 46 ft wide.

Who owns SH 99 over Ind. Spur/Uprr/Lyn Canal?

It is owned by the State Highway Agency and maintained by the State Toll Authority.