US Bridges

Woodward Island RD over Middle River

Good

San Joaquin County, California · 0.1 MI W Bacon Island RD · Structure no. 29C0415

Built
2020
5 years old
Condition
Good
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
675 ft
1 main span
Daily traffic
100
2020 count
Owner
County
County Highway Agency

About this bridge

Woodward Island RD over Middle River is a steel stringer/multi-beam or girder carrying Woodward Island RD over Middle River in San Joaquin County, California. It was built in 2020, so it is 5 years old, younger than the California average of 54.8 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 100 vehicles a day, roughly 1% of them trucks, projected to reach 143 by 2044. The structure is 675 ft (205.6 m) long and 25 ft wide. If it were closed, the detour would be 61.5 mi (99 km).

CarriesWoodward Island RD
CrossesMiddle River
Location0.1 MI W Bacon Island RD
RouteCounty Highway 0
Coordinates37.91943, -121.51793
Functional classRural Local

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 protection8 Very GoodNo problems noted.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
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 rating46.4 US tons
Inventory rating35.7 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1 (+6 approach)
Design loadHL 93
Structure length675 ft (205.6 m)
Longest span100 ft (30.5 m)
Deck width25 ft (7.5 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2020)
Projected traffic143 by 2044
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed61.5 mi (99 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—
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was Woodward Island RD over Middle River built?

It was built in 2020, making it 5 years old in 2025.

What condition is Woodward Island RD over Middle River 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 September 2024.

How much traffic does Woodward Island RD over Middle River carry?

About 100 vehicles per day (2020 count), of which roughly 1% are trucks.

How long is Woodward Island RD over Middle River?

The structure is 675 ft (205.6 m) long with a longest span of 100 ft (30.5 m) and a deck 25 ft wide.

Who owns Woodward Island RD over Middle River?

It is owned by the County Highway Agency.