US Bridges

Loop 337 NB over Dry Comal Creek

Good

Comal County, Texas · 0.9 MI N of IH 35 · Structure no. 150460021601024

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

About this bridge

Loop 337 NB over Dry Comal Creek is a prestressed concrete stringer/multi-beam or girder carrying Loop 337 NB over Dry Comal Creek 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 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 23,811 vehicles a day, roughly 4% of them trucks, projected to reach 25,250 by 2033. The structure is 410 ft (125 m) long and 50 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesLoop 337 NB
CrossesDry Comal Creek
Location0.9 MI N of IH 35
RouteState Highway 337
StateTexas
Coordinates29.68798, -98.15503
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
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
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.9 US tons
Inventory rating20 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4 (+2 approach)
Design loadHS 20
Structure length410 ft (125 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
CrossesWaterway
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Loop 337 NB over Dry Comal Creek built?

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

What condition is Loop 337 NB over Dry Comal Creek 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 2024.

How much traffic does Loop 337 NB over Dry Comal Creek carry?

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

How long is Loop 337 NB over Dry Comal Creek?

The structure is 410 ft (125 m) long with a longest span of 80 ft (24.4 m) and a deck 50 ft wide.

Who owns Loop 337 NB over Dry Comal Creek?

It is owned by the State Highway Agency.