US Bridges

Woodland Ave over State Route 99

Poor

Stanislaus County, California · 10-STA-099-R17.51-MOD · Structure no. 38 0087

Built
1963
62 years old
Condition
Poor
inspected March 2023
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
238 ft
4 main spans
Daily traffic
10,500
2006 count
Owner
State
State Highway Agency

About this bridge

Woodland Ave over State Route 99 is a concrete continuous box beam or girders - multiple carrying Woodland Ave over State Route 99 in Stanislaus County, California. It was built in 1963, so it is 62 years old, older 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 10,500 vehicles a day, roughly 2% of them trucks, projected to reach 17,964 by 2043. The structure is 238 ft (72.5 m) long and 37 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesWoodland Ave
CrossesState Route 99
Location10-STA-099-R17.51-MOD
RouteCity Street 0
Coordinates37.65317, -121.02527
Functional classUrban 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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating37.5 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length238 ft (72.5 m)
Longest span74 ft (22.6 m)
Deck width37 ft (11.3 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,500 (2006)
Projected traffic17,964 by 2043
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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$1.4 million (2024 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Woodland Ave over State Route 99 built?

It was built in 1963, making it 62 years old in 2025.

What condition is Woodland Ave over State Route 99 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 March 2023.

How much traffic does Woodland Ave over State Route 99 carry?

About 10,500 vehicles per day (2006 count), of which roughly 2% are trucks.

How long is Woodland Ave over State Route 99?

The structure is 238 ft (72.5 m) long with a longest span of 74 ft (22.6 m) and a deck 37 ft wide.

Who owns Woodland Ave over State Route 99?

It is owned by the State Highway Agency.