US Bridges

STP7243;E Park Ctr over Walling Ditch

Good

Ada County, Idaho · East Boise · Structure no. 000000000033995

Built
2009
16 years old
Condition
Good
inspected November 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
104 ft
1 main span
Daily traffic
11,500
2023 count
Owner
County
County Highway Agency

About this bridge

STP7243;E Park Ctr over Walling Ditch is a prestressed concrete stringer/multi-beam or girder carrying STP7243;E Park Ctr over Walling Ditch in Ada County, Idaho. It was built in 2009, so it is 16 years old, younger than the Idaho average of 45.3 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 11,500 vehicles a day, roughly 1% of them trucks, projected to reach 17,250 by 2042. The structure is 104 ft (31.7 m) long and 76 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesSTP7243;E Park Ctr
CrossesWalling Ditch
LocationEast Boise
RouteCity Street 7243
StateIdaho
Coordinates43.57781, -116.14769
Functional classUrban Other Principal 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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2023
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 adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating103 US tons
Inventory rating50 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length104 ft (31.7 m)
Longest span101 ft (30.8 m)
Deck width76 ft (23.2 m)
Roadway width59 ft (18 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,500 (2023)
Projected traffic17,250 by 2042
Trucks1%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed0.6 mi (1 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 STP7243;E Park Ctr over Walling Ditch built?

It was built in 2009, making it 16 years old in 2025.

What condition is STP7243;E Park Ctr over Walling Ditch 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 November 2023.

How much traffic does STP7243;E Park Ctr over Walling Ditch carry?

About 11,500 vehicles per day (2023 count), of which roughly 1% are trucks.

How long is STP7243;E Park Ctr over Walling Ditch?

The structure is 104 ft (31.7 m) long with a longest span of 101 ft (30.8 m) and a deck 76 ft wide.

Who owns STP7243;E Park Ctr over Walling Ditch?

It is owned by the County Highway Agency.