US Bridges

Freitas Pkwy over U.S. Highway 101

Poor

Marin County, California · 04-MRN-101-13.71-SRF · Structure no. 27 0080

Built
1960
65 years old
Condition
Poor
inspected April 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
278 ft
2 main spans
Daily traffic
18,000
2000 count
Owner
State
State Highway Agency

About this bridge

Freitas Pkwy over U.S. Highway 101 is a prestressed concrete continuous stringer/multi-beam or girder carrying Freitas Pkwy over U.S. Highway 101 in Marin County, California. It was built in 1960, 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 poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 18,000 vehicles a day, roughly 1% of them trucks, projected to reach 27,077 by 2041. The structure is 278 ft (84.7 m) long and 70 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesFreitas Pkwy
CrossesU.S. Highway 101
Location04-MRN-101-13.71-SRF
RouteCity Street 0
CountyMarin County
StateCalifornia
Coordinates38.00699, -122.54172
Functional classUrban Minor Arterial

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating30.8 US tons
Inventory rating21.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2 (+2 approach)
Design loadHS 20
Structure length278 ft (84.7 m)
Longest span86 ft (26.2 m)
Deck width70 ft (21.2 m)
Roadway width58 ft (17.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18,000 (2000)
Projected traffic27,077 by 2041
Trucks1%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed3.1 mi (5 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$3 million (2020 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Freitas Pkwy over U.S. Highway 101 built?

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

What condition is Freitas Pkwy over U.S. Highway 101 in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in April 2023.

How much traffic does Freitas Pkwy over U.S. Highway 101 carry?

About 18,000 vehicles per day (2000 count), of which roughly 1% are trucks.

How long is Freitas Pkwy over U.S. Highway 101?

The structure is 278 ft (84.7 m) long with a longest span of 86 ft (26.2 m) and a deck 70 ft wide.

Who owns Freitas Pkwy over U.S. Highway 101?

It is owned by the State Highway Agency.