US Bridges

Cascade Lakes HWY over Fall Creek @sparks

Good

Deschutes County, Oregon · MP 26.566 · Structure no. 231000410702557

Built
2017
8 years old
Condition
Good
inspected July 2023
Type
Slab
Prestressed Concrete
Length
65 ft
1 main span
Daily traffic
1,491
2020 count
Owner
County
County Highway Agency

About this bridge

Cascade Lakes HWY over Fall Creek @sparks is a prestressed concrete slab carrying Cascade Lakes HWY over Fall Creek @sparks in Deschutes County, Oregon. It was built in 2017, so it is 8 years old, younger than the Oregon average of 49.9 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 1,491 vehicles a day, roughly 2% of them trucks, projected to reach 1,716 by 2025. The structure is 65 ft (19.8 m) long and 36 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

CarriesCascade Lakes HWY
CrossesFall Creek @sparks
LocationMP 26.566
RouteCounty Highway 4107
StateOregon
Coordinates44.03011, -121.73834
Functional classRural Major Collector

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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating84.3 US tons
Inventory rating65 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length65 ft (19.8 m)
Longest span0 ft (0 m)
Deck width36 ft (11.1 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,491 (2020)
Projected traffic1,716 by 2025
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Cascade Lakes HWY over Fall Creek @sparks built?

It was built in 2017, making it 8 years old in 2025.

What condition is Cascade Lakes HWY over Fall Creek @sparks 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 July 2023.

How much traffic does Cascade Lakes HWY over Fall Creek @sparks carry?

About 1,491 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Cascade Lakes HWY over Fall Creek @sparks?

The structure is 65 ft (19.8 m) long and a deck 36 ft wide.

Who owns Cascade Lakes HWY over Fall Creek @sparks?

It is owned by the County Highway Agency.