US Bridges

Dishman-Mica RD over Chester Creek

Good

Spokane County, Washington · 0.1 S Chester · Structure no. 086465000000000

Built
1999
26 years old
Condition
Good
inspected June 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
33 ft
2 main spans
Daily traffic
5,800
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

Dishman-Mica RD over Chester Creek is a prestressed concrete stringer/multi-beam or girder carrying Dishman-Mica RD over Chester Creek in Spokane County, Washington. It was built in 1999, so it is 26 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 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 5,800 vehicles a day, roughly 18% of them trucks, projected to reach 7,100 by 2042. The structure is 33 ft (10.1 m) long and 48 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesDishman-Mica RD
CrossesChester Creek
Location0.1 S Chester
RouteCounty Highway 8007
Coordinates47.61452, -117.24488
Functional classUrban Minor Arterial

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.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2024
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 adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating41.1 US tons
Inventory rating27.4 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans2
Design loadHS 25 or greater
Structure length33 ft (10.1 m)
Longest span17 ft (5.2 m)
Deck width48 ft (14.6 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,800 (2022)
Projected traffic7,100 by 2042
Trucks18%
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

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$533,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Dishman-Mica RD over Chester Creek built?

It was built in 1999, making it 26 years old in 2025.

What condition is Dishman-Mica RD over Chester 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 June 2024.

How much traffic does Dishman-Mica RD over Chester Creek carry?

About 5,800 vehicles per day (2022 count), of which roughly 18% are trucks.

How long is Dishman-Mica RD over Chester Creek?

The structure is 33 ft (10.1 m) long with a longest span of 17 ft (5.2 m) and a deck 48 ft wide.

Who owns Dishman-Mica RD over Chester Creek?

It is owned by the City or Municipal Highway Agency.