US Bridges

South Coast Drive over Greenville-Banning Chan

Fair

Orange County, California · 0.4 Mi. E/O Harbor Blvd. · Structure no. 55C0467

Built
1981
44 years old
Condition
Fair
inspected October 2023
Type
Culvert
Concrete
Length
34 ft
2 main spans
Daily traffic
11,000
2014 count
Owner
City
City or Municipal Highway Agency

About this bridge

South Coast Drive over Greenville-Banning Chan is a concrete culvert carrying South Coast Drive over Greenville-Banning Chan in Orange County, California. It was built in 1981, so it is 44 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 11,000 vehicles a day, roughly 1% of them trucks, projected to reach 23,908 by 2045. The structure is 34 ft (10.4 m) long and 80 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesSouth Coast Drive
CrossesGreenville-Banning Chan
Location0.4 Mi. E/O Harbor Blvd.
RouteCity Street 0
CountyOrange County
StateCalifornia
Coordinates33.69147, -117.91376
Functional classUrban Minor 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
Channel and channel protection8 Very GoodNo problems noted.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadUnknown
Structure length34 ft (10.4 m)
Longest span17 ft (5.1 m)
Deck width80 ft (24.4 m)
Roadway width54 ft (16.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,000 (2014)
Projected traffic23,908 by 2045
Trucks1%
Lanes on structure4
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 South Coast Drive over Greenville-Banning Chan built?

It was built in 1981, making it 44 years old in 2025.

What condition is South Coast Drive over Greenville-Banning Chan 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 October 2023.

How much traffic does South Coast Drive over Greenville-Banning Chan carry?

About 11,000 vehicles per day (2014 count), of which roughly 1% are trucks.

How long is South Coast Drive over Greenville-Banning Chan?

The structure is 34 ft (10.4 m) long with a longest span of 17 ft (5.1 m) and a deck 80 ft wide.

Who owns South Coast Drive over Greenville-Banning Chan?

It is owned by the City or Municipal Highway Agency.