US Bridges

Lockwood San Lucas over Salinas River

PoorPosted for load

Monterey County, California · 0.1 MI W of US 101 · Structure no. 44C0007

Built
1915
110 years old, rebuilt 1960
Condition
Poor
inspected October 2024
Type
Truss - Thru
Steel
Length
860 ft
6 main spans
Daily traffic
530
2016 count
Owner
County
County Highway Agency

About this bridge

Lockwood San Lucas over Salinas River is a steel truss - thru carrying Lockwood San Lucas over Salinas River in Monterey County, California. It was built in 1915 and reconstructed in 1960, so it is 110 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. Its operating status is: posted for load restriction.

It carries about 530 vehicles a day, roughly 10% of them trucks, projected to reach 408 by 2041. The structure is 860 ft (262.1 m) long and 18 ft wide. If it were closed, the detour would be 34.8 mi (56 km).

CarriesLockwood San Lucas
CrossesSalinas River
Location0.1 MI W of US 101
RouteCounty Highway 0
Coordinates36.11613, -121.02953
Functional classRural Local

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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating18.5 US tons
Inventory rating11 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckCorrugated steel
Main spans6 (+2 approach)
Design loadUnknown
Structure length860 ft (262.1 m)
Longest span131 ft (39.8 m)
Deck width18 ft (5.5 m)
Roadway width17 ft (5.3 m)
Vertical clearance over deck13 ft (4.1 m)

Traffic and service

Average daily traffic530 (2016)
Projected traffic408 by 2041
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed34.8 mi (56 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusEligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$5.4 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Lockwood San Lucas over Salinas River built?

It was built in 1915, making it 110 years old in 2025. It was reconstructed in 1960.

What condition is Lockwood San Lucas over Salinas River 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 October 2024.

How much traffic does Lockwood San Lucas over Salinas River carry?

About 530 vehicles per day (2016 count), of which roughly 10% are trucks.

How long is Lockwood San Lucas over Salinas River?

The structure is 860 ft (262.1 m) long with a longest span of 131 ft (39.8 m) and a deck 18 ft wide.

Who owns Lockwood San Lucas over Salinas River?

It is owned by the County Highway Agency.