US Bridges

Or 99W (hwy 91) over Berry Creek

Fair

Polk County, Oregon · 009 MI N Polk Benton CO L · Structure no. 00871A01W 07148

Built
1923
102 years old, rebuilt 1943
Condition
Fair
inspected April 2023
Type
Stringer/Multi-beam or Girder
Concrete
Length
40 ft
1 main span
Daily traffic
8,275
2022 count
Owner
State
State Highway Agency

About this bridge

Or 99W (hwy 91) over Berry Creek is a concrete stringer/multi-beam or girder carrying Or 99W (hwy 91) over Berry Creek in Polk County, Oregon. It was built in 1923 and reconstructed in 1943, so it is 102 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 8,275 vehicles a day, roughly 6% of them trucks, projected to reach 8,500 by 2042. The structure is 40 ft (12.2 m) long and 40 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

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CarriesOr 99W (hwy 91)
CrossesBerry Creek
Location009 MI N Polk Benton CO L
RouteState Highway 99
CountyPolk County
StateOregon
Coordinates44.73246, -123.22314
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
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 rating10.4 US tons
Inventory rating7.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length40 ft (12.2 m)
Longest span40 ft (12.2 m)
Deck width40 ft (12.2 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,275 (2022)
Projected traffic8,500 by 2042
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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$205,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Or 99W (hwy 91) over Berry Creek built?

It was built in 1923, making it 102 years old in 2025. It was reconstructed in 1943.

What condition is Or 99W (hwy 91) over Berry 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 2023.

How much traffic does Or 99W (hwy 91) over Berry Creek carry?

About 8,275 vehicles per day (2022 count), of which roughly 6% are trucks.

How long is Or 99W (hwy 91) over Berry Creek?

The structure is 40 ft (12.2 m) long with a longest span of 40 ft (12.2 m) and a deck 40 ft wide.

Who owns Or 99W (hwy 91) over Berry Creek?

It is owned by the State Highway Agency.