US Bridges

PAULARINO-N55 Onrp over N55-S405 Connector Ramp

Good

Orange County, California · 12-ORA-055-R5.80-CMS · Structure no. 55 0437S

Built
1968
57 years old
Condition
Good
inspected February 2024
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
247 ft
3 main spans
Daily traffic
9,301
2014 count
Owner
State
State Highway Agency

About this bridge

PAULARINO-N55 Onrp over N55-S405 Connector Ramp is a concrete continuous box beam or girders - multiple carrying PAULARINO-N55 Onrp over N55-S405 Connector Ramp in Orange County, California. It was built in 1968, 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 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 9,301 vehicles a day, roughly 4% of them trucks, projected to reach 11,381 by 2044. The structure is 247 ft (75.3 m) long and 26 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesPAULARINO-N55 Onrp
CrossesN55-S405 Connector Ramp
Location12-ORA-055-R5.80-CMS
RouteState Highway 55
Coordinates33.6846, -117.87412
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionFebruary 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 rating48.9 US tons
Inventory rating37.5 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length247 ft (75.3 m)
Longest span105 ft (32 m)
Deck width26 ft (7.9 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,301 (2014)
Projected traffic11,381 by 2044
Trucks4%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 PAULARINO-N55 Onrp over N55-S405 Connector Ramp built?

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

What condition is PAULARINO-N55 Onrp over N55-S405 Connector Ramp 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 February 2024.

How much traffic does PAULARINO-N55 Onrp over N55-S405 Connector Ramp carry?

About 9,301 vehicles per day (2014 count), of which roughly 4% are trucks.

How long is PAULARINO-N55 Onrp over N55-S405 Connector Ramp?

The structure is 247 ft (75.3 m) long with a longest span of 105 ft (32 m) and a deck 26 ft wide.

Who owns PAULARINO-N55 Onrp over N55-S405 Connector Ramp?

It is owned by the State Highway Agency.