US Bridges

KATELLA-N55 on Ra over Katella Ave

Fair

Orange County, California · 12-ORA-055-15.20-ORA · Structure no. 55 0925S

Built
2002
23 years old
Condition
Fair
inspected March 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
185 ft
4 main spans
Daily traffic
8,133
2020 count
Owner
State
State Highway Agency

About this bridge

KATELLA-N55 on Ra over Katella Ave is a prestressed concrete continuous box beam or girders - multiple carrying KATELLA-N55 on Ra over Katella Ave in Orange County, California. It was built in 2002, so it is 23 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 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 8,133 vehicles a day, roughly 3% of them trucks, projected to reach 12,000 by 2042. The structure is 185 ft (56.5 m) long and 36 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

Location

Open in Google Maps
CarriesKATELLA-N55 on Ra
CrossesKatella Ave
Location12-ORA-055-15.20-ORA
RouteState Highway 55
CountyOrange County
StateCalifornia
Coordinates33.81006, -117.8315
Functional classUrban Principal Arterial - Other Freeway or Expressway

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
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 typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length185 ft (56.5 m)
Longest span61 ft (18.6 m)
Deck width36 ft (11.1 m)
Roadway width33 ft (10 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,133 (2020)
Projected traffic12,000 by 2042
Trucks3%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed2.5 mi (4 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 KATELLA-N55 on Ra over Katella Ave built?

It was built in 2002, making it 23 years old in 2025.

What condition is KATELLA-N55 on Ra over Katella Ave 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 March 2024.

How much traffic does KATELLA-N55 on Ra over Katella Ave carry?

About 8,133 vehicles per day (2020 count), of which roughly 3% are trucks.

How long is KATELLA-N55 on Ra over Katella Ave?

The structure is 185 ft (56.5 m) long with a longest span of 61 ft (18.6 m) and a deck 36 ft wide.

Who owns KATELLA-N55 on Ra over Katella Ave?

It is owned by the State Highway Agency.