US Bridges

Corydon Road over Palomar Channel

Good

Riverside County, California · .1 M NE Union & Corydon · Structure no. 56C0627

Built
2006
19 years old
Condition
Good
inspected January 2024
Type
Culvert
Concrete
Length
48 ft
3 main spans
Daily traffic
2,000
2018 count
Owner
City
City or Municipal Highway Agency

About this bridge

Corydon Road over Palomar Channel is a concrete culvert carrying Corydon Road over Palomar Channel in Riverside County, California. It was built in 2006, so it is 19 years old, younger than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 2,000 vehicles a day, roughly 1% of them trucks, projected to reach 3,081 by 2046. The structure is 48 ft (14.6 m) long and 114 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesCorydon Road
CrossesPalomar Channel
Location.1 M NE Union & Corydon
RouteCity Street 0
Coordinates33.61936, -117.30305
Functional classUrban Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection9 ExcellentNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionJanuary 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal 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 spans3
Design loadUnknown
Structure length48 ft (14.6 m)
Longest span16 ft (4.9 m)
Deck width114 ft (34.7 m)
Roadway width52 ft (15.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,000 (2018)
Projected traffic3,081 by 2046
Trucks1%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway
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 Corydon Road over Palomar Channel built?

It was built in 2006, making it 19 years old in 2025.

What condition is Corydon Road over Palomar Channel in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in January 2024.

How much traffic does Corydon Road over Palomar Channel carry?

About 2,000 vehicles per day (2018 count), of which roughly 1% are trucks.

How long is Corydon Road over Palomar Channel?

The structure is 48 ft (14.6 m) long with a longest span of 16 ft (4.9 m) and a deck 114 ft wide.

Who owns Corydon Road over Palomar Channel?

It is owned by the City or Municipal Highway Agency.