US Bridges

IH 45 NB over Gladstell ST

Good

Montgomery County, Texas · 1.60 MI S of SH 105 · Structure no. 121700067508219

Built
2010
15 years old
Condition
Good
inspected September 2022
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
341 ft
3 main spans
Daily traffic
64,969
2017 count
Owner
State
State Highway Agency

About this bridge

IH 45 NB over Gladstell ST is a prestressed concrete stringer/multi-beam or girder carrying IH 45 NB over Gladstell ST in Montgomery County, Texas. It was built in 2010, so it is 15 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 64,969 vehicles a day, roughly 10% of them trucks, projected to reach 54,500 by 2033. The structure is 341 ft (103.9 m) long and 96 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesIH 45 NB
CrossesGladstell ST
Location1.60 MI S of SH 105
RouteInterstate 45
CountyMontgomery County
StateTexas
Coordinates30.29304, -95.46419
Functional classUrban Principal Arterial - Interstate

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionSeptember 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: 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
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length341 ft (103.9 m)
Longest span121 ft (36.9 m)
Deck width96 ft (29.2 m)
Roadway width94 ft (28.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic64,969 (2017)
Projected traffic54,500 by 2033
Trucks10%
Lanes on structure5
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was IH 45 NB over Gladstell ST built?

It was built in 2010, making it 15 years old in 2025.

What condition is IH 45 NB over Gladstell ST 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 September 2022.

How much traffic does IH 45 NB over Gladstell ST carry?

About 64,969 vehicles per day (2017 count), of which roughly 10% are trucks.

How long is IH 45 NB over Gladstell ST?

The structure is 341 ft (103.9 m) long with a longest span of 121 ft (36.9 m) and a deck 96 ft wide.

Who owns IH 45 NB over Gladstell ST?

It is owned by the State Highway Agency.