US Bridges

Blaine ST over Old Indian Creek Channel

Fair

Canyon County, Idaho · In Caldwell;blaine & 7th · Structure no. 000000000012195

Built
1971
54 years old
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
61 ft
1 main span
Daily traffic
5,400
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Blaine ST over Old Indian Creek Channel is a prestressed concrete stringer/multi-beam or girder carrying Blaine ST over Old Indian Creek Channel in Canyon County, Idaho. It was built in 1971, so it is 54 years old, older than the Idaho average of 45.3 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 5,400 vehicles a day, roughly 3% of them trucks, projected to reach 8,100 by 2042. The structure is 61 ft (18.6 m) long and 98 ft wide.

CarriesBlaine ST
CrossesOld Indian Creek Channel
LocationIn Caldwell;blaine & 7th
RouteCity Street 0
StateIdaho
Coordinates43.66556, -116.68972
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating69 US tons
Inventory rating41 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length61 ft (18.6 m)
Longest span59 ft (18 m)
Deck width98 ft (29.9 m)
Roadway width54 ft (16.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,400 (2023)
Projected traffic8,100 by 2042
Trucks3%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesOther
Detour if closed—
TollOn a free road
National Highway SystemYes

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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Blaine ST over Old Indian Creek Channel built?

It was built in 1971, making it 54 years old in 2025.

What condition is Blaine ST over Old Indian Creek Channel 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 October 2024.

How much traffic does Blaine ST over Old Indian Creek Channel carry?

About 5,400 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is Blaine ST over Old Indian Creek Channel?

The structure is 61 ft (18.6 m) long with a longest span of 59 ft (18 m) and a deck 98 ft wide.

Who owns Blaine ST over Old Indian Creek Channel?

It is owned by the City or Municipal Highway Agency.