US Bridges

Csah 18 over State Ditch # 68

Good

Norman County, Minnesota · 0.1 MI S of JCT Csah 19 · Structure no. 54542

Built
1993
32 years old
Condition
Good
inspected October 2023
Type
Tee Beam
Prestressed Concrete
Length
94 ft
3 main spans
Daily traffic
145
2021 count
Owner
County
County Highway Agency

About this bridge

Csah 18 over State Ditch # 68 is a prestressed concrete tee beam carrying Csah 18 over State Ditch # 68 in Norman County, Minnesota. It was built in 1993, so it is 32 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 145 vehicles a day, projected to reach 180 by 2041. The structure is 94 ft (28.7 m) long and 40 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesCsah 18
CrossesState Ditch # 68
Location0.1 MI S of JCT Csah 19
RouteCounty Highway 18
CountyNorman County
StateMinnesota
Coordinates47.36834, -96.62324
Functional classRural Major Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75.8 US tons
Inventory rating45.4 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 25 or greater
Structure length94 ft (28.7 m)
Longest span31 ft (9.5 m)
Deck width40 ft (12.2 m)
Roadway width37 ft (11.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic145 (2021)
Projected traffic180 by 2041
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 18 over State Ditch # 68 built?

It was built in 1993, making it 32 years old in 2025.

What condition is Csah 18 over State Ditch # 68 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 2023.

How much traffic does Csah 18 over State Ditch # 68 carry?

About 145 vehicles per day (2021 count).

How long is Csah 18 over State Ditch # 68?

The structure is 94 ft (28.7 m) long with a longest span of 31 ft (9.5 m) and a deck 40 ft wide.

Who owns Csah 18 over State Ditch # 68?

It is owned by the County Highway Agency.