US Bridges

Miller RD over Smallman Creek

PoorPosted for load

Linn County, Oregon · 009 MI N CR 5 · Structure no. 14012 061700092

Built
1950
75 years old
Condition
Poor
inspected July 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
97 ft
5 main spans
Daily traffic
15
2021 count
Owner
County
County Highway Agency

About this bridge

Miller RD over Smallman Creek is a wood or timber stringer/multi-beam or girder carrying Miller RD over Smallman Creek in Linn County, Oregon. It was built in 1950, so it is 75 years old, older than the Oregon average of 49.9 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 15 vehicles a day, projected to reach 26 by 2041. The structure is 97 ft (29.6 m) long and 18 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

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CarriesMiller RD
CrossesSmallman Creek
Location009 MI N CR 5
RouteCounty Highway C0617
CountyLinn County
StateOregon
Coordinates44.74042, -122.89446
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJuly 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating14.3 US tons
Inventory rating11 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialWood or Timber
DeckWood or timber
Main spans5
Design loadH 20
Structure length97 ft (29.6 m)
Longest span19 ft (5.8 m)
Deck width18 ft (5.6 m)
Roadway width18 ft (5.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15 (2021)
Projected traffic26 by 2041
Trucks0%
Lanes on structure2
Traffic directionOne-lane bridge for two-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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$497,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Miller RD over Smallman Creek built?

It was built in 1950, making it 75 years old in 2025.

What condition is Miller RD over Smallman Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in July 2024.

How much traffic does Miller RD over Smallman Creek carry?

About 15 vehicles per day (2021 count).

How long is Miller RD over Smallman Creek?

The structure is 97 ft (29.6 m) long with a longest span of 19 ft (5.8 m) and a deck 18 ft wide.

Who owns Miller RD over Smallman Creek?

It is owned by the County Highway Agency.