US Bridges

HWY 172 over Deep Creek

Fair

Clackamas County, Oregon · 3.5 MI S Sandy · Structure no. 03062 172 00208

Built
1948
77 years old
Condition
Fair
inspected April 2024
Type
Tee Beam
Concrete Continuous
Length
161 ft
3 main spans
Daily traffic
8,140
2022 count
Owner
State
State Highway Agency

About this bridge

HWY 172 over Deep Creek is a concrete continuous tee beam carrying HWY 172 over Deep Creek in Clackamas County, Oregon. It was built in 1948, so it is 77 years old, older than the Oregon average of 49.9 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 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 8,140 vehicles a day, roughly 13% of them trucks, projected to reach 12,000 by 2042. The structure is 161 ft (49.1 m) long and 31 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesHWY 172
CrossesDeep Creek
Location3.5 MI S Sandy
RouteState Highway 211
CountyClackamas County
StateOregon
Coordinates45.37296, -122.32278
Functional classRural 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating14.7 US tons
Inventory rating11 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length161 ft (49.1 m)
Longest span63 ft (19.2 m)
Deck width31 ft (9.4 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,140 (2022)
Projected traffic12,000 by 2042
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$825,000
NavigationNo navigation control on waterway

Frequently asked questions

When was HWY 172 over Deep Creek built?

It was built in 1948, making it 77 years old in 2025.

What condition is HWY 172 over Deep 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 April 2024.

How much traffic does HWY 172 over Deep Creek carry?

About 8,140 vehicles per day (2022 count), of which roughly 13% are trucks.

How long is HWY 172 over Deep Creek?

The structure is 161 ft (49.1 m) long with a longest span of 63 ft (19.2 m) and a deck 31 ft wide.

Who owns HWY 172 over Deep Creek?

It is owned by the State Highway Agency.