US Bridges

Canyon Rock over Devils Hollow Creek

Fair

Comal County, Texas · 0.06 MI S of Mystic Breez · Structure no. 150460AA5109001

Built
2006
19 years old
Condition
Fair
inspected September 2023
Type
Culvert
Steel
Length
61 ft
4 main spans
Daily traffic
37
2020 count
Owner
County
County Highway Agency

About this bridge

Canyon Rock over Devils Hollow Creek is a steel culvert carrying Canyon Rock over Devils Hollow Creek in Comal County, Texas. It was built in 2006, so it is 19 years old, younger 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 37 vehicles a day, roughly 2% of them trucks, projected to reach 1 by 1900. The structure is 61 ft (18.6 m) long. If it were closed, the detour would be 1.9 mi (3 km).

CarriesCanyon Rock
CrossesDevils Hollow Creek
Location0.06 MI S of Mystic Breez
RouteCity Street 0
StateTexas
Coordinates29.97534, -98.33442
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75 US tons
Inventory rating45 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans4
Design loadUnknown
Structure length61 ft (18.6 m)
Longest span5 ft (1.5 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic37 (2020)
Projected traffic1 by 1900
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Canyon Rock over Devils Hollow Creek built?

It was built in 2006, making it 19 years old in 2025.

What condition is Canyon Rock over Devils Hollow Creek 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 September 2023.

How much traffic does Canyon Rock over Devils Hollow Creek carry?

About 37 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Canyon Rock over Devils Hollow Creek?

The structure is 61 ft (18.6 m) long with a longest span of 5 ft (1.5 m).

Who owns Canyon Rock over Devils Hollow Creek?

It is owned by the County Highway Agency.