US Bridges

US Highway 101 SB over Salinas River

Good

Monterey County, California · 05-MON-101-60.75 · Structure no. 44 0002L

Built
1999
26 years old
Condition
Good
inspected May 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
1,545 ft
11 main spans
Daily traffic
18,600
2009 count
Owner
State
State Highway Agency

About this bridge

US Highway 101 SB over Salinas River is a prestressed concrete continuous box beam or girders - multiple carrying US Highway 101 SB over Salinas River in Monterey County, California. It was built in 1999, so it is 26 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 18,600 vehicles a day, projected to reach 28,412 by 2044. The structure is 1,545 ft (470.8 m) long and 43 ft wide.

CarriesUS Highway 101 SB
CrossesSalinas River
Location05-MON-101-60.75
RouteU.S. Route 101
Coordinates36.40798, -121.31886
Functional classRural Principal Arterial - Other

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 inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans11
Design loadHS 20 + Mod
Structure length1,545 ft (470.8 m)
Longest span142 ft (43.4 m)
Deck width43 ft (13 m)
Roadway width39 ft (11.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18,600 (2009)
Projected traffic28,412 by 2044
Trucks0%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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—
NavigationNo navigation control on waterway

Frequently asked questions

When was US Highway 101 SB over Salinas River built?

It was built in 1999, making it 26 years old in 2025.

What condition is US Highway 101 SB over Salinas 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 May 2024.

How much traffic does US Highway 101 SB over Salinas River carry?

About 18,600 vehicles per day (2009 count).

How long is US Highway 101 SB over Salinas River?

The structure is 1,545 ft (470.8 m) long with a longest span of 142 ft (43.4 m) and a deck 43 ft wide.

Who owns US Highway 101 SB over Salinas River?

It is owned by the State Highway Agency.