US Bridges

Darlington Avenue over Brea Creek Channel

Fair

Orange County, California · 100 N/O Franklin Street · Structure no. 55C0197

Built
1950
75 years old
Condition
Fair
inspected May 2023
Type
Slab
Prestressed Concrete
Length
51 ft
1 main span
Daily traffic
1,205
2017 count
Owner
City
City or Municipal Highway Agency

About this bridge

Darlington Avenue over Brea Creek Channel is a prestressed concrete slab carrying Darlington Avenue over Brea Creek Channel in Orange County, California. It was built in 1950, so it is 75 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 1,205 vehicles a day, roughly 1% of them trucks, projected to reach 1,650 by 2040. The structure is 51 ft (15.5 m) long and 35 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesDarlington Avenue
CrossesBrea Creek Channel
Location100 N/O Franklin Street
RouteCity Street 0
Coordinates33.87725, -117.99595
Functional classUrban Local

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.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: 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 rating31.4 US tons
Inventory rating19 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadUnknown
Structure length51 ft (15.5 m)
Longest span50 ft (15.2 m)
Deck width35 ft (10.7 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,205 (2017)
Projected traffic1,650 by 2040
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

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 Darlington Avenue over Brea Creek Channel built?

It was built in 1950, making it 75 years old in 2025.

What condition is Darlington Avenue over Brea Creek 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 May 2023.

How much traffic does Darlington Avenue over Brea Creek Channel carry?

About 1,205 vehicles per day (2017 count), of which roughly 1% are trucks.

How long is Darlington Avenue over Brea Creek Channel?

The structure is 51 ft (15.5 m) long with a longest span of 50 ft (15.2 m) and a deck 35 ft wide.

Who owns Darlington Avenue over Brea Creek Channel?

It is owned by the City or Municipal Highway Agency.