US Bridges

Csah 39 over Hillman Creek

Good

Morrison County, Minnesota · 0.3 MI E of JCT Csah 41 · Structure no. 49J10

Built
1999
26 years old
Condition
Good
inspected October 2021
Type
Culvert
Concrete
Length
33 ft
2 main spans
Daily traffic
1,237
2022 count
Owner
County
County Highway Agency

About this bridge

Csah 39 over Hillman Creek is a concrete culvert carrying Csah 39 over Hillman Creek in Morrison County, Minnesota. It was built in 1999, so it is 26 years old, younger than the Minnesota average of 38.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,237 vehicles a day, roughly 2% of them trucks, projected to reach 1,150 by 2042. The structure is 33 ft (10.2 m) long. If it were closed, the detour would be 8.1 mi (13 km).

CarriesCsah 39
CrossesHillman Creek
Location0.3 MI E of JCT Csah 41
RouteCounty Highway 39
Coordinates45.98317, -93.97689
Functional classRural Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionOctober 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75.6 US tons
Inventory rating45 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 25 or greater
Structure length33 ft (10.2 m)
Longest span14 ft (4.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,237 (2022)
Projected traffic1,150 by 2042
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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 39 over Hillman Creek built?

It was built in 1999, making it 26 years old in 2025.

What condition is Csah 39 over Hillman Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in October 2021.

How much traffic does Csah 39 over Hillman Creek carry?

About 1,237 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is Csah 39 over Hillman Creek?

The structure is 33 ft (10.2 m) long with a longest span of 14 ft (4.3 m).

Who owns Csah 39 over Hillman Creek?

It is owned by the County Highway Agency.