US Bridges

Csah 33 over Lily Creek

Fair

Martin County, Minnesota · 1.1 MI N of JCT Csah 32 · Structure no. 46516

Built
1972
53 years old
Condition
Fair
inspected September 2023
Type
Channel Beam
Prestressed Concrete
Length
63 ft
3 main spans
Daily traffic
128
2022 count
Owner
County
County Highway Agency

About this bridge

Csah 33 over Lily Creek is a prestressed concrete channel beam carrying Csah 33 over Lily Creek in Martin County, Minnesota. It was built in 1972, so it is 53 years old, older 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 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 128 vehicles a day, projected to reach 125 by 2042. The structure is 63 ft (19.3 m) long and 38 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesCsah 33
CrossesLily Creek
Location1.1 MI N of JCT Csah 32
RouteCounty Highway 33
CountyMartin County
StateMinnesota
Coordinates43.70457, -94.55216
Functional classRural Minor Collector

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.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating84.5 US tons
Inventory rating50.8 US tons

Structure

Structure typeChannel Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length63 ft (19.3 m)
Longest span25 ft (7.7 m)
Deck width38 ft (11.6 m)
Roadway width34 ft (10.3 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 closed3.1 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Csah 33 over Lily Creek built?

It was built in 1972, making it 53 years old in 2025.

What condition is Csah 33 over Lily Creek 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 September 2023.

How much traffic does Csah 33 over Lily Creek carry?

About 128 vehicles per day (2022 count).

How long is Csah 33 over Lily Creek?

The structure is 63 ft (19.3 m) long with a longest span of 25 ft (7.7 m) and a deck 38 ft wide.

Who owns Csah 33 over Lily Creek?

It is owned by the County Highway Agency.