US Bridges

W/B Dimension Dr. over Serrano Creek

Fair

Orange County, California · 0.3 Mi. W/O Lake Forest · Structure no. 55C0595L

Built
1987
38 years old
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
76 ft
1 main span
Daily traffic
6,000
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

W/B Dimension Dr. over Serrano Creek is a prestressed concrete stringer/multi-beam or girder carrying W/B Dimension Dr. over Serrano Creek in Orange County, California. It was built in 1987, so it is 38 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 6,000 vehicles a day, roughly 35% of them trucks, projected to reach 8,224 by 2041. The structure is 76 ft (23.2 m) long and 48 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesW/B Dimension Dr.
CrossesSerrano Creek
Location0.3 Mi. W/O Lake Forest
RouteCity Street 0
CountyOrange County
StateCalifornia
Coordinates33.66264, -117.67317
Functional classUrban Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.8 US tons
Inventory rating37.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length76 ft (23.2 m)
Longest span73 ft (22.3 m)
Deck width48 ft (14.6 m)
Roadway width35 ft (10.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,000 (2020)
Projected traffic8,224 by 2041
Trucks35%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.1 mi (5 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 W/B Dimension Dr. over Serrano Creek built?

It was built in 1987, making it 38 years old in 2025.

What condition is W/B Dimension Dr. over Serrano Creek 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 May 2024.

How much traffic does W/B Dimension Dr. over Serrano Creek carry?

About 6,000 vehicles per day (2020 count), of which roughly 35% are trucks.

How long is W/B Dimension Dr. over Serrano Creek?

The structure is 76 ft (23.2 m) long with a longest span of 73 ft (22.3 m) and a deck 48 ft wide.

Who owns W/B Dimension Dr. over Serrano Creek?

It is owned by the City or Municipal Highway Agency.