US Bridges

Csah 16 over I 494

Fair

Washington County, Minnesota · 1.7 MI S of JCT TH 94 · Structure no. 82016

Built
2006
19 years old
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
247 ft
2 main spans
Daily traffic
20,946
2021 count
Owner
State
State Highway Agency

About this bridge

Csah 16 over I 494 is a prestressed concrete stringer/multi-beam or girder carrying Csah 16 over I 494 in Washington County, Minnesota. It was built in 2006, so it is 19 years old, younger than the Minnesota average of 38.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 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 20,946 vehicles a day, projected to reach 20,400 by 2041. The structure is 247 ft (75.2 m) long and 132 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesCsah 16
CrossesI 494
Location1.7 MI S of JCT TH 94
RouteCounty Highway 16
CountyWashington County
StateMinnesota
Coordinates44.92574, -92.96879
Functional classUrban Minor 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
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating85.4 US tons
Inventory rating41.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length247 ft (75.2 m)
Longest span120 ft (36.7 m)
Deck width132 ft (40.3 m)
Roadway width108 ft (32.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20,946 (2021)
Projected traffic20,400 by 2041
Trucks—
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

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 Csah 16 over I 494 built?

It was built in 2006, making it 19 years old in 2025.

What condition is Csah 16 over I 494 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 Csah 16 over I 494 carry?

About 20,946 vehicles per day (2021 count).

How long is Csah 16 over I 494?

The structure is 247 ft (75.2 m) long with a longest span of 120 ft (36.7 m) and a deck 132 ft wide.

Who owns Csah 16 over I 494?

It is owned by the State Highway Agency.