US Bridges

US Highway 101 SB over UP RR AMTRAK Front ST

Fair

Monterey County, California · 05-MON-101-62.70 · Structure no. 44 0091L

Built
1960
65 years old, rebuilt 2009
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
313 ft
4 main spans
Daily traffic
18,660
2009 count
Owner
State
State Highway Agency

About this bridge

US Highway 101 SB over UP RR AMTRAK Front ST is a steel stringer/multi-beam or girder carrying US Highway 101 SB over UP RR AMTRAK Front ST in Monterey County, California. It was built in 1960 and reconstructed in 2009, so it is 65 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 6 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 18,660 vehicles a day, roughly 16% of them trucks, projected to reach 23,260 by 2042. The structure is 313 ft (95.5 m) long and 33 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

CarriesUS Highway 101 SB
CrossesUP RR AMTRAK Front ST
Location05-MON-101-62.70
RouteU.S. Route 101
Coordinates36.43116, -121.33721
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionMay 2024
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 rating83.2 US tons
Inventory rating49.6 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length313 ft (95.5 m)
Longest span92 ft (28 m)
Deck width33 ft (10 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18,660 (2009)
Projected traffic23,260 by 2042
Trucks16%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and railroad
Detour if closed8.7 mi (14 km)
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was US Highway 101 SB over UP RR AMTRAK Front ST built?

It was built in 1960, making it 65 years old in 2025. It was reconstructed in 2009.

What condition is US Highway 101 SB over UP RR AMTRAK Front ST 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 May 2024.

How much traffic does US Highway 101 SB over UP RR AMTRAK Front ST carry?

About 18,660 vehicles per day (2009 count), of which roughly 16% are trucks.

How long is US Highway 101 SB over UP RR AMTRAK Front ST?

The structure is 313 ft (95.5 m) long with a longest span of 92 ft (28 m) and a deck 33 ft wide.

Who owns US Highway 101 SB over UP RR AMTRAK Front ST?

It is owned by the State Highway Agency.