US Bridges

Moulton Parkway over Alicia Creek

Fair

Orange County, California · 200 NW Alicia Pkway · Structure no. 55C0237

Built
1968
57 years old, rebuilt 1981
Condition
Fair
inspected June 2024
Type
Frame
Concrete
Length
23 ft
1 main span
Daily traffic
20,900
2019 count
Owner
City
City or Municipal Highway Agency

About this bridge

Moulton Parkway over Alicia Creek is a concrete frame carrying Moulton Parkway over Alicia Creek in Orange County, California. It was built in 1968 and reconstructed in 1981, so it is 57 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 20,900 vehicles a day, roughly 1% of them trucks, projected to reach 49,810 by 2046. The structure is 23 ft (7 m) long. If it were closed, the detour would be 1.2 mi (2 km).

CarriesMoulton Parkway
CrossesAlicia Creek
Location200 NW Alicia Pkway
RouteCity Street 0
Coordinates33.58426, -117.70722
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44.6 US tons
Inventory rating26.8 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length23 ft (7 m)
Longest span22 ft (6.8 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20,900 (2019)
Projected traffic49,810 by 2046
Trucks1%
Lanes on structure9
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 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 Moulton Parkway over Alicia Creek built?

It was built in 1968, making it 57 years old in 2025. It was reconstructed in 1981.

What condition is Moulton Parkway over Alicia Creek 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 June 2024.

How much traffic does Moulton Parkway over Alicia Creek carry?

About 20,900 vehicles per day (2019 count), of which roughly 1% are trucks.

How long is Moulton Parkway over Alicia Creek?

The structure is 23 ft (7 m) long with a longest span of 22 ft (6.8 m).

Who owns Moulton Parkway over Alicia Creek?

It is owned by the City or Municipal Highway Agency.