US Bridges

N110-N5 Connector over Duvall ST-S5 & S110 Ramp

Fair

Los Angeles County, California · 07-LA-005-20.94-LA · Structure no. 53 1460S

Built
1961
64 years old
Condition
Fair
inspected April 2023
Type
Slab
Concrete
Length
39 ft
1 main span
Daily traffic
44,100
2019 count
Owner
State
State Highway Agency

About this bridge

N110-N5 Connector over Duvall ST-S5 & S110 Ramp is a concrete slab carrying N110-N5 Connector over Duvall ST-S5 & S110 Ramp in Los Angeles County, California. It was built in 1961, so it is 64 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 5 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 44,100 vehicles a day, roughly 2% of them trucks, projected to reach 60,978 by 2042. The structure is 39 ft (11.9 m) long and 57 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesN110-N5 Connector
CrossesDuvall ST-S5 & S110 Ramp
Location07-LA-005-20.94-LA
RouteInterstate 5
CountyLos Angeles County
StateCalifornia
Coordinates34.08568, -118.23113
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionApril 2023
Inspection intervalevery 48 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 geometry6: Equal to present minimum criteria
Approach roadway alignment2: Basically intolerable, requiring high priority of replacement
Operating rating76.1 US tons
Inventory rating58.5 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length39 ft (11.9 m)
Longest span38 ft (11.6 m)
Deck width57 ft (17.5 m)
Roadway width46 ft (14 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic44,100 (2019)
Projected traffic60,978 by 2042
Trucks2%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway 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 N110-N5 Connector over Duvall ST-S5 & S110 Ramp built?

It was built in 1961, making it 64 years old in 2025.

What condition is N110-N5 Connector over Duvall ST-S5 & S110 Ramp 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 April 2023.

How much traffic does N110-N5 Connector over Duvall ST-S5 & S110 Ramp carry?

About 44,100 vehicles per day (2019 count), of which roughly 2% are trucks.

How long is N110-N5 Connector over Duvall ST-S5 & S110 Ramp?

The structure is 39 ft (11.9 m) long with a longest span of 38 ft (11.6 m) and a deck 57 ft wide.

Who owns N110-N5 Connector over Duvall ST-S5 & S110 Ramp?

It is owned by the State Highway Agency.