US Bridges

Dustin RD over Dry Creek

Poor

San Joaquin County, California · 0.8 MI N Liberty Road · Structure no. 29C0129

Built
1974
51 years old
Condition
Poor
inspected January 2024
Type
Slab
Concrete Continuous
Length
417 ft
15 main spans
Daily traffic
846
2013 count
Owner
County
County Highway Agency

About this bridge

Dustin RD over Dry Creek is a concrete continuous slab carrying Dustin RD over Dry Creek in San Joaquin County, California. It was built in 1974, so it is 51 years old, younger than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 846 vehicles a day, roughly 15% of them trucks, projected to reach 549 by 2046. The structure is 417 ft (127.1 m) long and 29 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesDustin RD
CrossesDry Creek
Location0.8 MI N Liberty Road
RouteCounty Highway 0
Coordinates38.24527, -121.22659
Functional classRural Minor Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
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 adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating68.6 US tons
Inventory rating41.1 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans15
Design loadHS 20
Structure length417 ft (127.1 m)
Longest span28 ft (8.5 m)
Deck width29 ft (8.7 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic846 (2013)
Projected traffic549 by 2046
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$1.9 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Dustin RD over Dry Creek built?

It was built in 1974, making it 51 years old in 2025.

What condition is Dustin RD over Dry Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in January 2024.

How much traffic does Dustin RD over Dry Creek carry?

About 846 vehicles per day (2013 count), of which roughly 15% are trucks.

How long is Dustin RD over Dry Creek?

The structure is 417 ft (127.1 m) long with a longest span of 28 ft (8.5 m) and a deck 29 ft wide.

Who owns Dustin RD over Dry Creek?

It is owned by the County Highway Agency.