US Bridges

N110-MARMION Way over Arroyo Seco & Bike Path

Good

Los Angeles County, California · 07-LA-110-29.20-LA · Structure no. 53 0886S

Built
1940
85 years old
Condition
Good
inspected January 2025
Type
Tee Beam
Concrete
Length
81 ft
1 main span
Daily traffic
8,500
2020 count
Owner
State
State Highway Agency

About this bridge

N110-MARMION Way over Arroyo Seco & Bike Path is a concrete tee beam carrying N110-MARMION Way over Arroyo Seco & Bike Path in Los Angeles County, California. It was built in 1940, so it is 85 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 8,500 vehicles a day, roughly 2% of them trucks, projected to reach 10,304 by 2047. The structure is 81 ft (24.7 m) long and 32 ft wide.

Location

Open in Google Maps
CarriesN110-MARMION Way
CrossesArroyo Seco & Bike Path
Location07-LA-110-29.20-LA
RouteState Highway 110
CountyLos Angeles County
StateCalifornia
Coordinates34.11091, -118.18042
Functional classUrban Principal Arterial - Other Freeway or Expressway

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 inspectionJanuary 2025
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating99.6 US tons
Inventory rating60 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 15
Structure length81 ft (24.7 m)
Longest span79 ft (24.1 m)
Deck width32 ft (9.8 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,500 (2020)
Projected traffic10,304 by 2047
Trucks2%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusEligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was N110-MARMION Way over Arroyo Seco & Bike Path built?

It was built in 1940, making it 85 years old in 2025.

What condition is N110-MARMION Way over Arroyo Seco & Bike Path 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 January 2025.

How much traffic does N110-MARMION Way over Arroyo Seco & Bike Path carry?

About 8,500 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is N110-MARMION Way over Arroyo Seco & Bike Path?

The structure is 81 ft (24.7 m) long with a longest span of 79 ft (24.1 m) and a deck 32 ft wide.

Who owns N110-MARMION Way over Arroyo Seco & Bike Path?

It is owned by the State Highway Agency.