US Bridges

Jonata Park Road over Zaca Creek

Fair

Santa Barbara County, California · 2.4 MI N S.R. 246 · Structure no. 51C0347

Built
2008
17 years old
Condition
Fair
inspected May 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
96 ft
1 main span
Daily traffic
825
2004 count
Owner
County
County Highway Agency

About this bridge

Jonata Park Road over Zaca Creek is a prestressed concrete box beam or girders - multiple carrying Jonata Park Road over Zaca Creek in Santa Barbara County, California. It was built in 2008, so it is 17 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 825 vehicles a day, roughly 21% of them trucks, projected to reach 1,542 by 2044. The structure is 96 ft (29.2 m) long and 36 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesJonata Park Road
CrossesZaca Creek
Location2.4 MI N S.R. 246
RouteCounty Highway 0
CountySanta Barbara County
StateCalifornia
Coordinates34.64825, -120.18422
Functional classRural Local

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 geometry6: Equal to 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

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length96 ft (29.2 m)
Longest span90 ft (27.4 m)
Deck width36 ft (11.1 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic825 (2004)
Projected traffic1,542 by 2044
Trucks21%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Jonata Park Road over Zaca Creek built?

It was built in 2008, making it 17 years old in 2025.

What condition is Jonata Park Road over Zaca 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 Jonata Park Road over Zaca Creek carry?

About 825 vehicles per day (2004 count), of which roughly 21% are trucks.

How long is Jonata Park Road over Zaca Creek?

The structure is 96 ft (29.2 m) long with a longest span of 90 ft (27.4 m) and a deck 36 ft wide.

Who owns Jonata Park Road over Zaca Creek?

It is owned by the County Highway Agency.