US Bridges

Dominic Road over Zollner Creek

Poor

Marion County, Oregon · 008 MI N Mt Angle · Structure no. 47C40 549

Built
1961
64 years old
Condition
Poor
inspected August 2024
Type
Tee Beam
Concrete
Length
68 ft
3 main spans
Daily traffic
1,696
2020 count
Owner
County
County Highway Agency

About this bridge

Dominic Road over Zollner Creek is a concrete tee beam carrying Dominic Road over Zollner Creek in Marion County, Oregon. It was built in 1961, so it is 64 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 2 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.

It carries about 1,696 vehicles a day, roughly 5% of them trucks, projected to reach 1,906 by 2025. The structure is 68 ft (20.7 m) long and 29 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesDominic Road
CrossesZollner Creek
Location008 MI N Mt Angle
RouteCounty Highway C0549
CountyMarion County
StateOregon
Coordinates45.08571, -122.78768
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.
Superstructure8 Very GoodNo problems noted.
Substructure2 CriticalAdvanced deterioration of primary structural elements. Bridge may be closed until corrective action is taken.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44.3 US tons
Inventory rating34.3 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length68 ft (20.7 m)
Longest span22 ft (6.7 m)
Deck width29 ft (8.8 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,696 (2020)
Projected traffic1,906 by 2025
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Dominic Road over Zollner Creek built?

It was built in 1961, making it 64 years old in 2025.

What condition is Dominic Road over Zollner 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 August 2024.

How much traffic does Dominic Road over Zollner Creek carry?

About 1,696 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is Dominic Road over Zollner Creek?

The structure is 68 ft (20.7 m) long with a longest span of 22 ft (6.7 m) and a deck 29 ft wide.

Who owns Dominic Road over Zollner Creek?

It is owned by the County Highway Agency.