US Bridges

NE Manley Road over Manley Creek

Good

Clark County, Washington · 0.28 MI N NE 249th ST · Structure no. 089305000000000

Built
2020
5 years old
Condition
Good
inspected April 2024
Type
Culvert
Concrete
Length
21 ft
1 main span
Daily traffic
1,346
2022 count
Owner
County
County Highway Agency

About this bridge

NE Manley Road over Manley Creek is a concrete culvert carrying NE Manley Road over Manley Creek in Clark County, Washington. It was built in 2020, so it is 5 years old, younger than the Washington average of 49.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,346 vehicles a day, roughly 10% of them trucks, projected to reach 4,038 by 2042. The structure is 21 ft (6.4 m) long and 39 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesNE Manley Road
CrossesManley Creek
Location0.28 MI N NE 249th ST
RouteCounty Highway 502
Coordinates45.80549, -122.58051
Functional classRural Minor Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable 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 rating63.9 US tons
Inventory rating49.3 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHL 93
Structure length21 ft (6.4 m)
Longest span20 ft (6.1 m)
Deck width39 ft (11.9 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,346 (2022)
Projected traffic4,038 by 2042
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 statusHistorical significance not determinable at this time
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$289,000 (2022 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was NE Manley Road over Manley Creek built?

It was built in 2020, making it 5 years old in 2025.

What condition is NE Manley Road over Manley 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 April 2024.

How much traffic does NE Manley Road over Manley Creek carry?

About 1,346 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is NE Manley Road over Manley Creek?

The structure is 21 ft (6.4 m) long with a longest span of 20 ft (6.1 m) and a deck 39 ft wide.

Who owns NE Manley Road over Manley Creek?

It is owned by the County Highway Agency.