US Bridges

Silent Harbor Loop over Drainage Ditch

Fair

Travis County, Texas · 0.6 MI W of Weiss LN · Structure no. 142270AA9829001

Built
2008
17 years old
Condition
Fair
inspected May 2024
Type
Culvert
Concrete
Length
72 ft
6 main spans
Daily traffic
50
2010 count
Owner
County
County Highway Agency

About this bridge

Silent Harbor Loop over Drainage Ditch is a concrete culvert carrying Silent Harbor Loop over Drainage Ditch in Travis County, Texas. It was built in 2008, so it is 17 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 50 vehicles a day, projected to reach 150 by 2030. The structure is 72 ft (21.9 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesSilent Harbor Loop
CrossesDrainage Ditch
Location0.6 MI W of Weiss LN
RouteCounty Highway 0
CountyTravis County
StateTexas
Coordinates30.44938, -97.57216
Functional classUrban 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 inspectionMay 2024
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 rating36 US tons
Inventory rating27 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans6
Design loadUnknown
Structure length72 ft (21.9 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2010)
Projected traffic150 by 2030
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 Silent Harbor Loop over Drainage Ditch built?

It was built in 2008, making it 17 years old in 2025.

What condition is Silent Harbor Loop over Drainage Ditch 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 May 2024.

How much traffic does Silent Harbor Loop over Drainage Ditch carry?

About 50 vehicles per day (2010 count).

How long is Silent Harbor Loop over Drainage Ditch?

The structure is 72 ft (21.9 m) long with a longest span of 10 ft (3 m).

Who owns Silent Harbor Loop over Drainage Ditch?

It is owned by the County Highway Agency.