US Bridges

FM 306 WB over UPRR

Good

Comal County, Texas · 0.76 MI W of IH 35 · Structure no. 150460172802086

Built
2015
10 years old
Condition
Good
inspected June 2022
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
718 ft
6 main spans
Daily traffic
16,761
2020 count
Owner
State
State Highway Agency

About this bridge

FM 306 WB over UPRR is a prestressed concrete stringer/multi-beam or girder carrying FM 306 WB over UPRR in Comal County, Texas. It was built in 2015, so it is 10 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 16,761 vehicles a day, roughly 5% of them trucks, projected to reach 8,855 by 2033. The structure is 718 ft (218.8 m) long and 49 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesFM 306 WB
CrossesUPRR
Location0.76 MI W of IH 35
RouteState Highway 306
StateTexas
Coordinates29.73762, -98.08834
Functional classUrban Other Principal 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.
Substructure7 GoodSome minor problems.
Last inspectionJune 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans6 (+1 approach)
Design loadHL 93
Structure length718 ft (218.8 m)
Longest span125 ft (38.1 m)
Deck width49 ft (14.8 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic16,761 (2020)
Projected traffic8,855 by 2033
Trucks5%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemYes

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 306 WB over UPRR built?

It was built in 2015, making it 10 years old in 2025.

What condition is FM 306 WB over UPRR 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 306 WB over UPRR carry?

About 16,761 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is FM 306 WB over UPRR?

The structure is 718 ft (218.8 m) long with a longest span of 125 ft (38.1 m) and a deck 49 ft wide.

Who owns FM 306 WB over UPRR?

It is owned by the State Highway Agency.