US Bridges

State Route 1 NB over Reservation RD

Good

Monterey County, California · 05-MON-001-R86.48 · Structure no. 44 0213R

Built
1976
49 years old
Condition
Good
inspected August 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
148 ft
1 main span
Daily traffic
23,000
2009 count
Owner
State
State Highway Agency

About this bridge

State Route 1 NB over Reservation RD is a prestressed concrete box beam or girders - multiple carrying State Route 1 NB over Reservation RD 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 23,000 vehicles a day, roughly 4% of them trucks, projected to reach 26,943 by 2043. The structure is 148 ft (45.1 m) long and 41 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesState Route 1 NB
CrossesReservation RD
Location05-MON-001-R86.48
RouteState Highway 1
Coordinates36.69651, -121.80473
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 geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57.9 US tons
Inventory rating38.6 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length148 ft (45.1 m)
Longest span148 ft (45.1 m)
Deck width41 ft (12.5 m)
Roadway width39 ft (11.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic23,000 (2009)
Projected traffic26,943 by 2043
Trucks4%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed0.6 mi (1 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 NB over Reservation RD built?

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

What condition is State Route 1 NB over Reservation RD 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 NB over Reservation RD carry?

About 23,000 vehicles per day (2009 count), of which roughly 4% are trucks.

How long is State Route 1 NB over Reservation RD?

The structure is 148 ft (45.1 m) long with a longest span of 148 ft (45.1 m) and a deck 41 ft wide.

Who owns State Route 1 NB over Reservation RD?

It is owned by the State Highway Agency.