US Bridges

FM 1097 over IH 45

Good

Montgomery County, Texas · 2.10 MI N of FM 830 · Structure no. 121700067508212

Built
2000
25 years old
Condition
Good
inspected October 2022
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
334 ft
4 main spans
Daily traffic
20,010
2013 count
Owner
State
State Highway Agency

About this bridge

FM 1097 over IH 45 is a prestressed concrete stringer/multi-beam or girder carrying FM 1097 over IH 45 in Montgomery County, Texas. It was built in 2000, so it is 25 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 20,010 vehicles a day, roughly 7% of them trucks, projected to reach 28,020 by 2033. The structure is 334 ft (101.8 m) long and 86 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesFM 1097
CrossesIH 45
Location2.10 MI N of FM 830
RouteState Highway 1097
StateTexas
Coordinates30.42107, -95.49133
Functional classUrban Collector

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 inspectionOctober 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

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length334 ft (101.8 m)
Longest span83 ft (25.3 m)
Deck width86 ft (26.1 m)
Roadway width83 ft (25.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20,010 (2013)
Projected traffic28,020 by 2033
Trucks7%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.1 mi (5 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 1097 over IH 45 built?

It was built in 2000, making it 25 years old in 2025.

What condition is FM 1097 over IH 45 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 October 2022.

How much traffic does FM 1097 over IH 45 carry?

About 20,010 vehicles per day (2013 count), of which roughly 7% are trucks.

How long is FM 1097 over IH 45?

The structure is 334 ft (101.8 m) long with a longest span of 83 ft (25.3 m) and a deck 86 ft wide.

Who owns FM 1097 over IH 45?

It is owned by the State Highway Agency.