US Bridges

IH 45 NB over Tamina Road

Good

Montgomery County, Texas · 4.8 MI N of Harris C/L · Structure no. 121700011004138

Built
1994
31 years old
Condition
Good
inspected August 2022
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
292 ft
3 main spans
Daily traffic
89,494
2017 count
Owner
State
State Highway Agency

About this bridge

IH 45 NB over Tamina Road is a prestressed concrete stringer/multi-beam or girder carrying IH 45 NB over Tamina Road in Montgomery 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 89,494 vehicles a day, roughly 8% of them trucks, projected to reach 110,840 by 2033. The structure is 292 ft (89 m) long and 73 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesIH 45 NB
CrossesTamina Road
Location4.8 MI N of Harris C/L
RouteInterstate 45
StateTexas
Coordinates30.17833, -95.45171
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 inspectionAugust 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum 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 spans3
Design loadHS 20
Structure length292 ft (89 m)
Longest span112 ft (34.1 m)
Deck width73 ft (22.2 m)
Roadway width70 ft (21.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic89,494 (2017)
Projected traffic110,840 by 2033
Trucks8%
Lanes on structure4
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 Tamina Road built?

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

What condition is IH 45 NB over Tamina Road 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 August 2022.

How much traffic does IH 45 NB over Tamina Road carry?

About 89,494 vehicles per day (2017 count), of which roughly 8% are trucks.

How long is IH 45 NB over Tamina Road?

The structure is 292 ft (89 m) long with a longest span of 112 ft (34.1 m) and a deck 73 ft wide.

Who owns IH 45 NB over Tamina Road?

It is owned by the State Highway Agency.