US Bridges

Csah 93 over Water Hen Creek

PoorPosted for load

St. Louis County, Minnesota · 0.2 MI S of JCT CR 630 · Structure no. 7754

Built
1937
88 years old
Condition
Poor
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
43 ft
1 main span
Daily traffic
125
2015 count
Owner
County
County Highway Agency

About this bridge

Csah 93 over Water Hen Creek is a steel stringer/multi-beam or girder carrying Csah 93 over Water Hen Creek in St. Louis County, Minnesota. It was built in 1937, so it is 88 years old, older than the Minnesota average of 38.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 125 vehicles a day, projected to reach 125 by 2039. The structure is 43 ft (13 m) long and 25 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesCsah 93
CrossesWater Hen Creek
Location0.2 MI S of JCT CR 630
RouteCounty Highway 93
Coordinates47.33952, -92.42063
Functional classRural Minor Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating25.4 US tons
Inventory rating19.6 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length43 ft (13 m)
Longest span38 ft (11.6 m)
Deck width25 ft (7.5 m)
Roadway width23 ft (7.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic125 (2015)
Projected traffic125 by 2039
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost$800 million (2017 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Csah 93 over Water Hen Creek built?

It was built in 1937, making it 88 years old in 2025.

What condition is Csah 93 over Water Hen Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in July 2024.

How much traffic does Csah 93 over Water Hen Creek carry?

About 125 vehicles per day (2015 count).

How long is Csah 93 over Water Hen Creek?

The structure is 43 ft (13 m) long with a longest span of 38 ft (11.6 m) and a deck 25 ft wide.

Who owns Csah 93 over Water Hen Creek?

It is owned by the County Highway Agency.