US Bridges

Parkersburg RD #91 over Small Creek

Good

Coos County, Oregon · 005 S Parkers Burg CO Par · Structure no. 11C11 009100464

Built
1981
44 years old
Condition
Good
inspected September 2024
Type
Slab
Prestressed Concrete
Length
40 ft
1 main span
Daily traffic
81
2020 count
Owner
County
County Highway Agency

About this bridge

Parkersburg RD #91 over Small Creek is a prestressed concrete slab carrying Parkersburg RD #91 over Small Creek in Coos County, Oregon. It was built in 1981, so it is 44 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 81 vehicles a day, roughly 1% of them trucks, projected to reach 91 by 2025. The structure is 40 ft (12.2 m) long and 24 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesParkersburg RD #91
CrossesSmall Creek
Location005 S Parkers Burg CO Par
RouteCounty Highway 0A422
StateOregon
Coordinates43.13845, -124.34652
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 protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50 US tons
Inventory rating38.6 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length40 ft (12.2 m)
Longest span38 ft (11.6 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic81 (2020)
Projected traffic91 by 2025
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 Parkersburg RD #91 over Small Creek built?

It was built in 1981, making it 44 years old in 2025.

What condition is Parkersburg RD #91 over Small Creek 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 September 2024.

How much traffic does Parkersburg RD #91 over Small Creek carry?

About 81 vehicles per day (2020 count), of which roughly 1% are trucks.

How long is Parkersburg RD #91 over Small Creek?

The structure is 40 ft (12.2 m) long with a longest span of 38 ft (11.6 m) and a deck 24 ft wide.

Who owns Parkersburg RD #91 over Small Creek?

It is owned by the County Highway Agency.