US Bridges

IH 45 Nbml over Spring CR Rel

Fair

Montgomery County, Texas · 0.2 MI N of Harris C/L · Structure no. 121700011004124

Built
1990
35 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
285 ft
3 main spans
Daily traffic
243,893
2023 count
Owner
State
State Highway Agency

About this bridge

IH 45 Nbml over Spring CR Rel is a prestressed concrete stringer/multi-beam or girder carrying IH 45 Nbml over Spring CR Rel in Montgomery County, Texas. It was built in 1990, so it is 35 years old, younger than the Texas average of 44.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 243,893 vehicles a day, roughly 9% of them trucks, projected to reach 341,450 by 2042. The structure is 285 ft (86.9 m) long and 95 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesIH 45 Nbml
CrossesSpring CR Rel
Location0.2 MI N of Harris C/L
RouteInterstate 45
CountyMontgomery County
StateTexas
Coordinates30.11393, -95.43752
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour evaluation has not been made
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable 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
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length285 ft (86.9 m)
Longest span95 ft (29 m)
Deck width95 ft (29 m)
Roadway width95 ft (29 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic243,893 (2023)
Projected traffic341,450 by 2042
Trucks9%
Lanes on structure5
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and waterway
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was IH 45 Nbml over Spring CR Rel built?

It was built in 1990, making it 35 years old in 2025.

What condition is IH 45 Nbml over Spring CR Rel in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in August 2024.

How much traffic does IH 45 Nbml over Spring CR Rel carry?

About 243,893 vehicles per day (2023 count), of which roughly 9% are trucks.

How long is IH 45 Nbml over Spring CR Rel?

The structure is 285 ft (86.9 m) long with a longest span of 95 ft (29 m) and a deck 95 ft wide.

Who owns IH 45 Nbml over Spring CR Rel?

It is owned by the State Highway Agency.