US Bridges

State Route 9 over Fall Creek

Fair

Santa Cruz County, California · 05-SCR-009-7.01 · Structure no. 36 0045

Built
1985
40 years old
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
104 ft
1 main span
Daily traffic
21,100
2016 count
Owner
State
State Highway Agency

About this bridge

State Route 9 over Fall Creek is a prestressed concrete stringer/multi-beam or girder carrying State Route 9 over Fall Creek in Santa Cruz County, California. It was built in 1985, so it is 40 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 21,100 vehicles a day, roughly 4% of them trucks, projected to reach 9,717 by 2046. The structure is 104 ft (31.7 m) long and 55 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesState Route 9
CrossesFall Creek
Location05-SCR-009-7.01
RouteState Highway 9
Coordinates37.05898, -122.07888
Functional classUrban Minor Arterial

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 protection7 GoodSome minor problems.
Last inspectionJune 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 rating59.6 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length104 ft (31.7 m)
Longest span100 ft (30.5 m)
Deck width55 ft (16.9 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic21,100 (2016)
Projected traffic9,717 by 2046
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

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 State Route 9 over Fall Creek built?

It was built in 1985, making it 40 years old in 2025.

What condition is State Route 9 over Fall 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 June 2024.

How much traffic does State Route 9 over Fall Creek carry?

About 21,100 vehicles per day (2016 count), of which roughly 4% are trucks.

How long is State Route 9 over Fall Creek?

The structure is 104 ft (31.7 m) long with a longest span of 100 ft (30.5 m) and a deck 55 ft wide.

Who owns State Route 9 over Fall Creek?

It is owned by the State Highway Agency.