US Bridges

Elm Ave over Arroyo Seco River

Good

Monterey County, California · Arroyo Seco Road · Structure no. 44C0066

Built
1943
82 years old
Condition
Good
inspected April 2024
Type
Truss - Thru
Steel
Length
267 ft
2 main spans
Daily traffic
640
2017 count
Owner
County
County Highway Agency

About this bridge

Elm Ave over Arroyo Seco River is a steel truss - thru carrying Elm Ave over Arroyo Seco River in Monterey County, California. It was built in 1943, so it is 82 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 640 vehicles a day, roughly 5% of them trucks, projected to reach 747 by 2041. The structure is 267 ft (81.4 m) long and 18 ft wide. If it were closed, the detour would be 21.7 mi (35 km).

CarriesElm Ave
CrossesArroyo Seco River
LocationArroyo Seco Road
RouteCounty Highway 0
Coordinates36.28022, -121.32249
Functional classRural Major Collector

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 protection7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating28.9 US tons
Inventory rating17.5 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length267 ft (81.4 m)
Longest span131 ft (40 m)
Deck width18 ft (5.4 m)
Roadway width16 ft (4.8 m)
Vertical clearance over deck14 ft (4.2 m)

Traffic and service

Average daily traffic640 (2017)
Projected traffic747 by 2041
Trucks5%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed21.7 mi (35 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Elm Ave over Arroyo Seco River built?

It was built in 1943, making it 82 years old in 2025.

What condition is Elm Ave over Arroyo Seco River 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 April 2024.

How much traffic does Elm Ave over Arroyo Seco River carry?

About 640 vehicles per day (2017 count), of which roughly 5% are trucks.

How long is Elm Ave over Arroyo Seco River?

The structure is 267 ft (81.4 m) long with a longest span of 131 ft (40 m) and a deck 18 ft wide.

Who owns Elm Ave over Arroyo Seco River?

It is owned by the County Highway Agency.