US Bridges

Jeronimo Road over Oso Creek Service Road

Good

Orange County, California · 0.31 MI E Marguerite Pky · Structure no. 55C0492

Built
1973
52 years old
Condition
Good
inspected May 2024
Type
Arch - Deck
Steel
Length
25 ft
1 main span
Daily traffic
15,313
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Jeronimo Road over Oso Creek Service Road is a steel arch - deck carrying Jeronimo Road over Oso Creek Service Road 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 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 15,313 vehicles a day, roughly 1% of them trucks, projected to reach 27,331 by 2044. The structure is 25 ft (7.6 m) long and 127 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesJeronimo Road
CrossesOso Creek Service Road
Location0.31 MI E Marguerite Pky
RouteCity Street 0
CountyOrange County
StateCalifornia
Coordinates33.60771, -117.64938
Functional classUrban Minor Arterial

Condition and inspection

Good

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

ComponentRatingMeaning
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeArch - Deck
MaterialSteel
DeckNot applicable
Main spans1
Design loadUnknown
Structure length25 ft (7.6 m)
Longest span23 ft (7 m)
Deck width127 ft (38.7 m)
Roadway width73 ft (22.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,313 (2020)
Projected traffic27,331 by 2044
Trucks1%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesPedestrian / bicycle
Detour if closed1.9 mi (3 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 Jeronimo Road over Oso Creek Service Road built?

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

What condition is Jeronimo Road over Oso Creek Service Road 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 May 2024.

How much traffic does Jeronimo Road over Oso Creek Service Road carry?

About 15,313 vehicles per day (2020 count), of which roughly 1% are trucks.

How long is Jeronimo Road over Oso Creek Service Road?

The structure is 25 ft (7.6 m) long with a longest span of 23 ft (7 m) and a deck 127 ft wide.

Who owns Jeronimo Road over Oso Creek Service Road?

It is owned by the City or Municipal Highway Agency.