US Bridges

Blaine ST over Paradise Creek

Good

Latah County, Idaho · In Moscow;blaine at White · Structure no. 000000000029730

Built
1972
53 years old
Condition
Good
inspected September 2023
Type
Tee Beam
Prestressed Concrete
Length
30 ft
1 main span
Daily traffic
3,300
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Blaine ST over Paradise Creek is a prestressed concrete tee beam carrying Blaine ST over Paradise Creek in Latah County, Idaho. It was built in 1972, so it is 53 years old, older 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 3,300 vehicles a day, roughly 1% of them trucks, projected to reach 4,950 by 2042. The structure is 30 ft (9.1 m) long and 40 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesBlaine ST
CrossesParadise Creek
LocationIn Moscow;blaine at White
RouteCity Street 0
StateIdaho
Coordinates46.72292, -116.98553
Functional classUrban Local

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
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 adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating37.7 US tons
Inventory rating27.8 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 15
Structure length30 ft (9.1 m)
Longest span29 ft (8.8 m)
Deck width40 ft (12.2 m)
Roadway width35 ft (10.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,300 (2023)
Projected traffic4,950 by 2042
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Blaine ST over Paradise Creek built?

It was built in 1972, making it 53 years old in 2025.

What condition is Blaine ST over Paradise 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 September 2023.

How much traffic does Blaine ST over Paradise Creek carry?

About 3,300 vehicles per day (2023 count), of which roughly 1% are trucks.

How long is Blaine ST over Paradise Creek?

The structure is 30 ft (9.1 m) long with a longest span of 29 ft (8.8 m) and a deck 40 ft wide.

Who owns Blaine ST over Paradise Creek?

It is owned by the City or Municipal Highway Agency.