US Bridges

Boronda Road WB over U.S. Highway 101

Fair

Monterey County, California · 05-MON-101-R91.01 · Structure no. 44 0131L

Built
1965
60 years old
Condition
Fair
inspected June 2024
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
168 ft
2 main spans
Daily traffic
14,600
2010 count
Owner
State
State Highway Agency

About this bridge

Boronda Road WB over U.S. Highway 101 is a concrete continuous box beam or girders - multiple carrying Boronda Road WB over U.S. Highway 101 in Monterey County, California. It was built in 1965, so it is 60 years old, older than the California average of 54.8 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 14,600 vehicles a day, roughly 5% of them trucks, projected to reach 22,604 by 2044. The structure is 168 ft (51.2 m) long and 47 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesBoronda Road WB
CrossesU.S. Highway 101
Location05-MON-101-R91.01
RouteCounty Highway 0
Coordinates36.72219, -121.66016
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.7 US tons
Inventory rating36 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length168 ft (51.2 m)
Longest span83 ft (25.3 m)
Deck width47 ft (14.4 m)
Roadway width40 ft (12.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,600 (2010)
Projected traffic22,604 by 2044
Trucks5%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Boronda Road WB over U.S. Highway 101 built?

It was built in 1965, making it 60 years old in 2025.

What condition is Boronda Road WB over U.S. Highway 101 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 June 2024.

How much traffic does Boronda Road WB over U.S. Highway 101 carry?

About 14,600 vehicles per day (2010 count), of which roughly 5% are trucks.

How long is Boronda Road WB over U.S. Highway 101?

The structure is 168 ft (51.2 m) long with a longest span of 83 ft (25.3 m) and a deck 47 ft wide.

Who owns Boronda Road WB over U.S. Highway 101?

It is owned by the State Highway Agency.