US Bridges

SR-26 Riverdale RD over I-15 (SR-15) Nbl and Sbl

Fair

Weber County, Utah · Riverdale RD Interchange · Structure no. 0C 967

Built
2014
11 years old
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
355 ft
2 main spans
Daily traffic
22,831
2022 count
Owner
State
State Highway Agency

About this bridge

SR-26 Riverdale RD over I-15 (SR-15) Nbl and Sbl is a steel continuous stringer/multi-beam or girder carrying SR-26 Riverdale RD over I-15 (SR-15) Nbl and Sbl in Weber County, Utah. It was built in 2014, so it is 11 years old, younger than the Utah average of 40.1 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 22,831 vehicles a day, roughly 21% of them trucks, projected to reach 27,397 by 2042. The structure is 355 ft (108.3 m) long and 104 ft wide.

Location

Open in Google Maps
CarriesSR-26 Riverdale RD
CrossesI-15 (SR-15) Nbl and Sbl
LocationRiverdale RD Interchange
RouteState Highway 26
CountyWeber County
StateUtah
Coordinates41.17083, -112.01972
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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating71.4 US tons
Inventory rating39.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, precast panels
Main spans2
Design loadHL 93
Structure length355 ft (108.3 m)
Longest span185 ft (56.4 m)
Deck width104 ft (31.6 m)
Roadway width94 ft (28.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic22,831 (2022)
Projected traffic27,397 by 2042
Trucks21%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkSTRAHNET connector

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was SR-26 Riverdale RD over I-15 (SR-15) Nbl and Sbl built?

It was built in 2014, making it 11 years old in 2025.

What condition is SR-26 Riverdale RD over I-15 (SR-15) Nbl and Sbl 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 August 2023.

How much traffic does SR-26 Riverdale RD over I-15 (SR-15) Nbl and Sbl carry?

About 22,831 vehicles per day (2022 count), of which roughly 21% are trucks.

How long is SR-26 Riverdale RD over I-15 (SR-15) Nbl and Sbl?

The structure is 355 ft (108.3 m) long with a longest span of 185 ft (56.4 m) and a deck 104 ft wide.

Who owns SR-26 Riverdale RD over I-15 (SR-15) Nbl and Sbl?

It is owned by the State Highway Agency.