US Bridges

Magnolia ST over Huntington Beach Channel

Fair

Orange County, California · 0.2 MI N/O RTE 1 · Structure no. 55C0388

Built
1973
52 years old
Condition
Fair
inspected September 2023
Type
Slab
Concrete
Length
90 ft
3 main spans
Daily traffic
9,000
2018 count
Owner
City
City or Municipal Highway Agency

About this bridge

Magnolia ST over Huntington Beach Channel is a concrete slab carrying Magnolia ST over Huntington Beach Channel in Orange County, California. It was built in 1973, so it is 52 years old, younger 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 6 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 9,000 vehicles a day, roughly 1% of them trucks, projected to reach 10,617 by 2040. The structure is 90 ft (27.4 m) long and 100 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesMagnolia ST
CrossesHuntington Beach Channel
Location0.2 MI N/O RTE 1
RouteCity Street 0
CountyOrange County
StateCalifornia
Coordinates33.64226, -117.97207
Functional classUrban Other Principal Arterial

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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionSeptember 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.2 US tons
Inventory rating33.6 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length90 ft (27.4 m)
Longest span35 ft (10.7 m)
Deck width100 ft (30.5 m)
Roadway width84 ft (25.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,000 (2018)
Projected traffic10,617 by 2040
Trucks1%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Magnolia ST over Huntington Beach Channel built?

It was built in 1973, making it 52 years old in 2025.

What condition is Magnolia ST over Huntington Beach Channel 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 September 2023.

How much traffic does Magnolia ST over Huntington Beach Channel carry?

About 9,000 vehicles per day (2018 count), of which roughly 1% are trucks.

How long is Magnolia ST over Huntington Beach Channel?

The structure is 90 ft (27.4 m) long with a longest span of 35 ft (10.7 m) and a deck 100 ft wide.

Who owns Magnolia ST over Huntington Beach Channel?

It is owned by the City or Municipal Highway Agency.