US Bridges

Colfax Street over Cady Marsh Ditch

Fair

Lake County, Indiana · 00.30 N. of 45th Ave · Structure no. 4500184

Built
1986
39 years old
Condition
Fair
inspected August 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
27 ft
1 main span
Daily traffic
6,656
2021 count
Owner
County
County Highway Agency

About this bridge

Colfax Street over Cady Marsh Ditch is a prestressed concrete box beam or girders - multiple carrying Colfax Street over Cady Marsh Ditch in Lake County, Indiana. It was built in 1986, so it is 39 years old, younger than the Indiana average of 46.6 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 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 6,656 vehicles a day, roughly 3% of them trucks, projected to reach 8,121 by 2041. The structure is 27 ft (8.1 m) long and 28 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesColfax Street
CrossesCady Marsh Ditch
Location00.30 N. of 45th Ave
RouteCity Street 0
StateIndiana
Coordinates41.54153, -87.41306
Functional classUrban 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
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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57.1 US tons
Inventory rating34.2 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length27 ft (8.1 m)
Longest span26 ft (7.8 m)
Deck width28 ft (8.5 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,656 (2021)
Projected traffic8,121 by 2041
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$601,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Colfax Street over Cady Marsh Ditch built?

It was built in 1986, making it 39 years old in 2025.

What condition is Colfax Street over Cady Marsh Ditch 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 August 2024.

How much traffic does Colfax Street over Cady Marsh Ditch carry?

About 6,656 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Colfax Street over Cady Marsh Ditch?

The structure is 27 ft (8.1 m) long with a longest span of 26 ft (7.8 m) and a deck 28 ft wide.

Who owns Colfax Street over Cady Marsh Ditch?

It is owned by the County Highway Agency.