US Bridges

Chapman Road over Lizzie Creek

Fair

Columbia County, Oregon · 055 MI NW of Scappoose · Structure no. 20655 103400100

Built
2007
18 years old
Condition
Fair
inspected May 2023
Type
Slab
Prestressed Concrete
Length
50 ft
1 main span
Daily traffic
155
2020 count
Owner
County
County Highway Agency

About this bridge

Chapman Road over Lizzie Creek is a prestressed concrete slab carrying Chapman Road over Lizzie Creek in Columbia County, Oregon. It was built in 2007, so it is 18 years old, younger 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 155 vehicles a day, roughly 10% of them trucks, projected to reach 160 by 2025. The structure is 50 ft (15.2 m) long and 28 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesChapman Road
CrossesLizzie Creek
Location055 MI NW of Scappoose
RouteCounty Highway C1034
CountyColumbia County
StateOregon
Coordinates45.82421, -122.99506
Functional classRural Local

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.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
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 rating90.4 US tons
Inventory rating69.7 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadUnknown
Structure length50 ft (15.2 m)
Longest span50 ft (15.2 m)
Deck width28 ft (8.5 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic155 (2020)
Projected traffic160 by 2025
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 Chapman Road over Lizzie Creek built?

It was built in 2007, making it 18 years old in 2025.

What condition is Chapman Road over Lizzie 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 May 2023.

How much traffic does Chapman Road over Lizzie Creek carry?

About 155 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is Chapman Road over Lizzie Creek?

The structure is 50 ft (15.2 m) long with a longest span of 50 ft (15.2 m) and a deck 28 ft wide.

Who owns Chapman Road over Lizzie Creek?

It is owned by the County Highway Agency.