US Bridges

State Route 1 over Dolan Creek

Good

Monterey County, California · 05-MON-001-31.17 · Structure no. 44 0054

Built
1961
64 years old
Condition
Good
inspected February 2025
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
414 ft
4 main spans
Daily traffic
2,000
2009 count
Owner
State
State Highway Agency

About this bridge

State Route 1 over Dolan Creek is a prestressed concrete stringer/multi-beam or girder carrying State Route 1 over Dolan Creek in Monterey County, California. It was built in 1961, so it is 64 years old, older 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 2,000 vehicles a day, roughly 1% of them trucks, projected to reach 5,143 by 2047. The structure is 414 ft (126.1 m) long and 34 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesState Route 1
CrossesDolan Creek
Location05-MON-001-31.17
RouteState Highway 1
Coordinates36.10606, -121.62289
Functional classRural Minor Arterial

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 inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating35.7 US tons
Inventory rating27.4 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4 (+2 approach)
Design loadHS 20 + Mod
Structure length414 ft (126.1 m)
Longest span75 ft (22.8 m)
Deck width34 ft (10.4 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,000 (2009)
Projected traffic5,143 by 2047
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemNo

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 State Route 1 over Dolan Creek built?

It was built in 1961, making it 64 years old in 2025.

What condition is State Route 1 over Dolan Creek 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 February 2025.

How much traffic does State Route 1 over Dolan Creek carry?

About 2,000 vehicles per day (2009 count), of which roughly 1% are trucks.

How long is State Route 1 over Dolan Creek?

The structure is 414 ft (126.1 m) long with a longest span of 75 ft (22.8 m) and a deck 34 ft wide.

Who owns State Route 1 over Dolan Creek?

It is owned by the State Highway Agency.