US Bridges

FM 1103 Mainlanes over IH 35

Good

Comal County, Texas · FM 1103 at IH 35 · Structure no. 150460001605456

Built
2019
6 years old
Condition
Good
inspected June 2022
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
220 ft
2 main spans
Daily traffic
17,600
2017 count
Owner
State
State Highway Agency

About this bridge

FM 1103 Mainlanes over IH 35 is a prestressed concrete stringer/multi-beam or girder carrying FM 1103 Mainlanes over IH 35 in Comal County, Texas. It was built in 2019, so it is 6 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 17,600 vehicles a day, projected to reach 28,600 by 2037. The structure is 220 ft (67.1 m) long and 97 ft wide.

Location

Open in Google Maps
CarriesFM 1103 Mainlanes
CrossesIH 35
LocationFM 1103 at IH 35
RouteState Highway 1103
CountyComal County
StateTexas
Coordinates29.62524, -98.23967
Functional classUrban Minor Arterial

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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionJune 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable 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 spans2
Design loadHL 93
Structure length220 ft (67.1 m)
Longest span110 ft (33.5 m)
Deck width97 ft (29.6 m)
Roadway width82 ft (25 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic17,600 (2017)
Projected traffic28,600 by 2037
Trucks0%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
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 1103 Mainlanes over IH 35 built?

It was built in 2019, making it 6 years old in 2025.

What condition is FM 1103 Mainlanes over IH 35 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 June 2022.

How much traffic does FM 1103 Mainlanes over IH 35 carry?

About 17,600 vehicles per day (2017 count).

How long is FM 1103 Mainlanes over IH 35?

The structure is 220 ft (67.1 m) long with a longest span of 110 ft (33.5 m) and a deck 97 ft wide.

Who owns FM 1103 Mainlanes over IH 35?

It is owned by the State Highway Agency.