US Bridges

PATTERSON-S101 on over Maria Ygnacio Creek

Good

Santa Barbara County, California · 05-SB-101-20.95 · Structure no. 51 0162K

Built
1997
28 years old
Condition
Good
inspected February 2025
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
162 ft
3 main spans
Daily traffic
49,500
2010 count
Owner
State
State Highway Agency

About this bridge

PATTERSON-S101 on over Maria Ygnacio Creek is a concrete continuous box beam or girders - multiple carrying PATTERSON-S101 on over Maria Ygnacio Creek in Santa Barbara County, California. It was built in 1997, so it is 28 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 49,500 vehicles a day, roughly 7% of them trucks, projected to reach 55,617 by 2047. The structure is 162 ft (49.4 m) long and 28 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesPATTERSON-S101 on
CrossesMaria Ygnacio Creek
Location05-SB-101-20.95
RouteU.S. Route 101
Coordinates34.44144, -119.80504
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.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionFebruary 2025
Inspection intervalevery 24 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 adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length162 ft (49.4 m)
Longest span63 ft (19.2 m)
Deck width28 ft (8.4 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic49,500 (2010)
Projected traffic55,617 by 2047
Trucks7%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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—
NavigationNo navigation control on waterway

Frequently asked questions

When was PATTERSON-S101 on over Maria Ygnacio Creek built?

It was built in 1997, making it 28 years old in 2025.

What condition is PATTERSON-S101 on over Maria Ygnacio Creek 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 2025.

How much traffic does PATTERSON-S101 on over Maria Ygnacio Creek carry?

About 49,500 vehicles per day (2010 count), of which roughly 7% are trucks.

How long is PATTERSON-S101 on over Maria Ygnacio Creek?

The structure is 162 ft (49.4 m) long with a longest span of 63 ft (19.2 m) and a deck 28 ft wide.

Who owns PATTERSON-S101 on over Maria Ygnacio Creek?

It is owned by the State Highway Agency.