US Bridges

CR 428 over San Gabriel River

Fair

Williamson County, Texas · 1.40 MI N of FM 1331 · Structure no. 142460AA0307001

Built
1984
41 years old
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
122 ft
2 main spans
Daily traffic
220
2010 count
Owner
County
County Highway Agency

About this bridge

CR 428 over San Gabriel River is a prestressed concrete stringer/multi-beam or girder carrying CR 428 over San Gabriel River in Williamson County, Texas. It was built in 1984, so it is 41 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 5 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 220 vehicles a day, projected to reach 440 by 2027. The structure is 122 ft (37.2 m) long and 31 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesCR 428
CrossesSan Gabriel River
Location1.40 MI N of FM 1331
RouteCounty Highway 428
CountyWilliamson County
StateTexas
Coordinates30.69478, -97.27887
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
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating36 US tons
Inventory rating27 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length122 ft (37.2 m)
Longest span60 ft (18.3 m)
Deck width31 ft (9.3 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic220 (2010)
Projected traffic440 by 2027
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 CR 428 over San Gabriel River built?

It was built in 1984, making it 41 years old in 2025.

What condition is CR 428 over San Gabriel River 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 November 2023.

How much traffic does CR 428 over San Gabriel River carry?

About 220 vehicles per day (2010 count).

How long is CR 428 over San Gabriel River?

The structure is 122 ft (37.2 m) long with a longest span of 60 ft (18.3 m) and a deck 31 ft wide.

Who owns CR 428 over San Gabriel River?

It is owned by the County Highway Agency.