US Bridges

Mc Laughlin Drive over Abandoned Quarry Road

Fair

Santa Cruz County, California · University Ca Santa Cruz · Structure no. 36I0001

Built
1966
59 years old
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
242 ft
4 main spans
Daily traffic
3,500
2016 count
Owner
State
Other State Agency

About this bridge

Mc Laughlin Drive over Abandoned Quarry Road is a prestressed concrete stringer/multi-beam or girder carrying Mc Laughlin Drive over Abandoned Quarry Road in Santa Cruz County, California. It was built in 1966, so it is 59 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 3,500 vehicles a day, roughly 2% of them trucks, projected to reach 4,500 by 2040. The structure is 242 ft (73.9 m) long and 42 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesMc Laughlin Drive
CrossesAbandoned Quarry Road
LocationUniversity Ca Santa Cruz
RouteState Lands Road 0
Coordinates37.00011, -122.0602
Functional classUrban Local

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to 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 rating49.6 US tons
Inventory rating27.4 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadUnknown
Structure length242 ft (73.9 m)
Longest span60 ft (18.3 m)
Deck width42 ft (12.7 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,500 (2016)
Projected traffic4,500 by 2040
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesOther
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerOther State Agency
Maintained byOther State 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 Mc Laughlin Drive over Abandoned Quarry Road built?

It was built in 1966, making it 59 years old in 2025.

What condition is Mc Laughlin Drive over Abandoned Quarry Road 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 September 2023.

How much traffic does Mc Laughlin Drive over Abandoned Quarry Road carry?

About 3,500 vehicles per day (2016 count), of which roughly 2% are trucks.

How long is Mc Laughlin Drive over Abandoned Quarry Road?

The structure is 242 ft (73.9 m) long with a longest span of 60 ft (18.3 m) and a deck 42 ft wide.

Who owns Mc Laughlin Drive over Abandoned Quarry Road?

It is owned by the Other State Agency.