US Bridges

State Route 1 SB over RR Row Del Monte BL-S1

Good

Monterey County, California · 05-MON-001-R85.14 · Structure no. 44 0211L

Built
1976
49 years old
Condition
Good
inspected August 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
700 ft
5 main spans
Daily traffic
29,500
2009 count
Owner
State
State Highway Agency

About this bridge

State Route 1 SB over RR Row Del Monte BL-S1 is a prestressed concrete continuous box beam or girders - multiple carrying State Route 1 SB over RR Row Del Monte BL-S1 in Monterey County, California. It was built in 1976, so it is 49 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 29,500 vehicles a day, roughly 4% of them trucks, projected to reach 46,938 by 2043. The structure is 700 ft (213.3 m) long and 53 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesState Route 1 SB
CrossesRR Row Del Monte BL-S1
Location05-MON-001-R85.14
RouteState Highway 1
Coordinates36.67793, -121.80776
Functional classUrban Principal Arterial - Other Freeway or Expressway

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.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20 + Mod
Structure length700 ft (213.3 m)
Longest span185 ft (56.4 m)
Deck width53 ft (16.2 m)
Roadway width51 ft (15.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic29,500 (2009)
Projected traffic46,938 by 2043
Trucks4%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and railroad
Detour if closed1.2 mi (2 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 State Route 1 SB over RR Row Del Monte BL-S1 built?

It was built in 1976, making it 49 years old in 2025.

What condition is State Route 1 SB over RR Row Del Monte BL-S1 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 August 2023.

How much traffic does State Route 1 SB over RR Row Del Monte BL-S1 carry?

About 29,500 vehicles per day (2009 count), of which roughly 4% are trucks.

How long is State Route 1 SB over RR Row Del Monte BL-S1?

The structure is 700 ft (213.3 m) long with a longest span of 185 ft (56.4 m) and a deck 53 ft wide.

Who owns State Route 1 SB over RR Row Del Monte BL-S1?

It is owned by the State Highway Agency.