US Bridges

Monroe Road over Dragoon Creek

Fair

Spokane County, Washington · 0.4 MI W of HWY 395 · Structure no. 089317000000000

Built
1963
62 years old
Condition
Fair
inspected July 2024
Type
Culvert
Steel
Length
21 ft
1 main span
Daily traffic
1,728
2019 count
Owner
County
County Highway Agency

About this bridge

Monroe Road over Dragoon Creek is a steel culvert carrying Monroe Road over Dragoon Creek in Spokane County, Washington. It was built in 1963, so it is 62 years old, older than the Washington average of 49.8 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 1,728 vehicles a day, roughly 5% of them trucks, projected to reach 2,488 by 2041. The structure is 21 ft (6.3 m) long and 76 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesMonroe Road
CrossesDragoon Creek
Location0.4 MI W of HWY 395
RouteCounty Highway 3066
CountySpokane County
StateWashington
Coordinates47.95262, -117.49617
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
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 rating106.8 US tons
Inventory rating93.6 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans1
Design loadUnknown
Structure length21 ft (6.3 m)
Longest span21 ft (6.3 m)
Deck width76 ft (23.2 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,728 (2019)
Projected traffic2,488 by 2041
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 statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$295,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Monroe Road over Dragoon Creek built?

It was built in 1963, making it 62 years old in 2025.

What condition is Monroe Road over Dragoon 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 July 2024.

How much traffic does Monroe Road over Dragoon Creek carry?

About 1,728 vehicles per day (2019 count), of which roughly 5% are trucks.

How long is Monroe Road over Dragoon Creek?

The structure is 21 ft (6.3 m) long with a longest span of 21 ft (6.3 m) and a deck 76 ft wide.

Who owns Monroe Road over Dragoon Creek?

It is owned by the County Highway Agency.