US Bridges

Loop 337 NB over UP RR & Landa RD

Fair

Comal County, Texas · 1.40 MI N of IH 35 · Structure no. 150460021601023

Built
1971
54 years old
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
290 ft
4 main spans
Daily traffic
23,811
2020 count
Owner
State
State Highway Agency

About this bridge

Loop 337 NB over UP RR & Landa RD is a prestressed concrete stringer/multi-beam or girder carrying Loop 337 NB over UP RR & Landa RD in Comal County, Texas. It was built in 1971, so it is 54 years old, older 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 23,811 vehicles a day, roughly 4% of them trucks, projected to reach 25,250 by 2033. The structure is 290 ft (88.4 m) long and 50 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesLoop 337 NB
CrossesUP RR & Landa RD
Location1.40 MI N of IH 35
RouteState Highway 337
CountyComal County
StateTexas
Coordinates29.69466, -98.15608
Functional classUrban Other Principal 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 inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating69 US tons
Inventory rating20 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length290 ft (88.4 m)
Longest span80 ft (24.4 m)
Deck width50 ft (15.3 m)
Roadway width41 ft (12.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic23,811 (2020)
Projected traffic25,250 by 2033
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway and railroad
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Loop 337 NB over UP RR & Landa RD built?

It was built in 1971, making it 54 years old in 2025.

What condition is Loop 337 NB over UP RR & Landa RD 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 June 2024.

How much traffic does Loop 337 NB over UP RR & Landa RD carry?

About 23,811 vehicles per day (2020 count), of which roughly 4% are trucks.

How long is Loop 337 NB over UP RR & Landa RD?

The structure is 290 ft (88.4 m) long with a longest span of 80 ft (24.4 m) and a deck 50 ft wide.

Who owns Loop 337 NB over UP RR & Landa RD?

It is owned by the State Highway Agency.