US Bridges

HWY 101 NB Rt Lane over Mission Creek

Good

Santa Barbara County, California · 05-SB-101-R14.96-SB · Structure no. 51 0208M

Built
1963
62 years old
Condition
Good
inspected January 2024
Type
Tee Beam
Concrete
Length
33 ft
1 main span
Daily traffic
120,000
2009 count
Owner
State
State Highway Agency

About this bridge

HWY 101 NB Rt Lane over Mission Creek is a concrete tee beam carrying HWY 101 NB Rt Lane over Mission Creek in Santa Barbara County, California. It was built in 1963, so it is 62 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 120,000 vehicles a day, roughly 7% of them trucks, projected to reach 136,592 by 2042. The structure is 33 ft (10.1 m) long and 281 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesHWY 101 NB Rt Lane
CrossesMission Creek
Location05-SB-101-R14.96-SB
RouteU.S. Route 101
Coordinates34.41826, -119.70974
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 protection8 Very GoodNo problems noted.
Last inspectionJanuary 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating110 US tons
Inventory rating77.5 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20 + Mod
Structure length33 ft (10.1 m)
Longest span30 ft (9.1 m)
Deck width281 ft (85.8 m)
Roadway width281 ft (85.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic120,000 (2009)
Projected traffic136,592 by 2042
Trucks7%
Lanes on structure6
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 HWY 101 NB Rt Lane over Mission Creek built?

It was built in 1963, making it 62 years old in 2025.

What condition is HWY 101 NB Rt Lane over Mission 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 January 2024.

How much traffic does HWY 101 NB Rt Lane over Mission Creek carry?

About 120,000 vehicles per day (2009 count), of which roughly 7% are trucks.

How long is HWY 101 NB Rt Lane over Mission Creek?

The structure is 33 ft (10.1 m) long with a longest span of 30 ft (9.1 m) and a deck 281 ft wide.

Who owns HWY 101 NB Rt Lane over Mission Creek?

It is owned by the State Highway Agency.