US Bridges

STC5777;REEDER Bay over Granite Creek

Good

Bonner County, Idaho · 0.5 N. 3.1 E. Nordman · Structure no. 000000000030251

Built
1996
29 years old
Condition
Good
inspected August 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
67 ft
1 main span
Daily traffic
920
2023 count
Owner
County
County Highway Agency

About this bridge

STC5777;REEDER Bay over Granite Creek is a prestressed concrete continuous stringer/multi-beam or girder carrying STC5777;REEDER Bay over Granite Creek in Bonner County, Idaho. It was built in 1996, so it is 29 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 920 vehicles a day, roughly 6% of them trucks, projected to reach 1,380 by 2042. The structure is 67 ft (20.4 m) long and 36 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

CarriesSTC5777;REEDER Bay
CrossesGranite Creek
Location0.5 N. 3.1 E. Nordman
RouteCounty Highway 5777
StateIdaho
Coordinates48.637, -116.87656
Functional classRural Major Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation7: Better than present minimum 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 rating110.1 US tons
Inventory rating86 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, precast panels
Main spans1
Design loadHS 25 or greater
Structure length67 ft (20.4 m)
Longest span65 ft (19.8 m)
Deck width36 ft (11 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic920 (2023)
Projected traffic1,380 by 2042
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 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 STC5777;REEDER Bay over Granite Creek built?

It was built in 1996, making it 29 years old in 2025.

What condition is STC5777;REEDER Bay over Granite 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 August 2024.

How much traffic does STC5777;REEDER Bay over Granite Creek carry?

About 920 vehicles per day (2023 count), of which roughly 6% are trucks.

How long is STC5777;REEDER Bay over Granite Creek?

The structure is 67 ft (20.4 m) long with a longest span of 65 ft (19.8 m) and a deck 36 ft wide.

Who owns STC5777;REEDER Bay over Granite Creek?

It is owned by the County Highway Agency.