US Bridges

Csah 33 over Elm Creek

PoorPosted for load

Martin County, Minnesota · 1.3 MI N of JCT Csah 38 · Structure no. 46505

Built
1965
60 years old
Condition
Poor
inspected November 2024
Type
Channel Beam
Prestressed Concrete
Length
93 ft
3 main spans
Daily traffic
128
2022 count
Owner
County
County Highway Agency

About this bridge

Csah 33 over Elm Creek is a prestressed concrete channel beam carrying Csah 33 over Elm Creek in Martin County, Minnesota. It was built in 1965, so it is 60 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 3 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 128 vehicles a day, projected to reach 125 by 2042. The structure is 93 ft (28.4 m) long and 31 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesCsah 33
CrossesElm Creek
Location1.3 MI N of JCT Csah 38
RouteCounty Highway 33
Coordinates43.75103, -94.55224
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourScour critical; extensive scour has occurred
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating25.2 US tons
Inventory rating14.4 US tons

Structure

Structure typeChannel Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length93 ft (28.4 m)
Longest span31 ft (9.5 m)
Deck width31 ft (9.6 m)
Roadway width30 ft (9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic128 (2022)
Projected traffic125 by 2042
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Csah 33 over Elm Creek built?

It was built in 1965, making it 60 years old in 2025.

What condition is Csah 33 over Elm 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 November 2024.

How much traffic does Csah 33 over Elm Creek carry?

About 128 vehicles per day (2022 count).

How long is Csah 33 over Elm Creek?

The structure is 93 ft (28.4 m) long with a longest span of 31 ft (9.5 m) and a deck 31 ft wide.

Who owns Csah 33 over Elm Creek?

It is owned by the County Highway Agency.