US Bridges

FM 1488 over IH 45

Fair

Montgomery County, Texas · 2.00 MI N of SH 242 · Structure no. 121700011004140

Built
1994
31 years old
Condition
Fair
inspected August 2022
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
468 ft
4 main spans
Daily traffic
40,520
2013 count
Owner
State
State Highway Agency

About this bridge

FM 1488 over IH 45 is a prestressed concrete stringer/multi-beam or girder carrying FM 1488 over IH 45 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 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 40,520 vehicles a day, roughly 9% of them trucks, projected to reach 56,730 by 2033. The structure is 468 ft (142.6 m) long and 75 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesFM 1488
CrossesIH 45
Location2.00 MI N of SH 242
RouteState Highway 1488
StateTexas
Coordinates30.23662, -95.45879
Functional classUrban Minor Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to 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

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length468 ft (142.6 m)
Longest span117 ft (35.7 m)
Deck width75 ft (22.8 m)
Roadway width72 ft (21.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic40,520 (2013)
Projected traffic56,730 by 2033
Trucks9%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

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 FM 1488 over IH 45 built?

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

What condition is FM 1488 over IH 45 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 2022.

How much traffic does FM 1488 over IH 45 carry?

About 40,520 vehicles per day (2013 count), of which roughly 9% are trucks.

How long is FM 1488 over IH 45?

The structure is 468 ft (142.6 m) long with a longest span of 117 ft (35.7 m) and a deck 75 ft wide.

Who owns FM 1488 over IH 45?

It is owned by the State Highway Agency.