US Bridges

Mississippi Street over Brown Ditch

Fair

Lake County, Indiana · 00.60 N of 217th Ave · Structure no. 4500018

Built
1995
30 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
46 ft
1 main span
Daily traffic
119
2012 count
Owner
County
County Highway Agency

About this bridge

Mississippi Street over Brown Ditch is a steel stringer/multi-beam or girder carrying Mississippi Street over Brown Ditch in Lake County, Indiana. It was built in 1995, so it is 30 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 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 119 vehicles a day, roughly 2% of them trucks, projected to reach 158 by 2040. The structure is 46 ft (14.1 m) long and 20 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesMississippi Street
CrossesBrown Ditch
Location00.60 N of 217th Ave
RouteCounty Highway 0
StateIndiana
Coordinates41.23391, -87.3143
Functional classRural Local

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.
Substructure7 GoodSome minor problems.
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 evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating77.4 US tons
Inventory rating46.3 US tons

Structure

MaterialSteel
DeckWood or timber
Main spans1
Design loadHS 20
Structure length46 ft (14.1 m)
Longest span43 ft (13.1 m)
Deck width20 ft (6.1 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic119 (2012)
Projected traffic158 by 2040
Trucks2%
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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$134,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Mississippi Street over Brown Ditch built?

It was built in 1995, making it 30 years old in 2025.

What condition is Mississippi Street over Brown 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 Mississippi Street over Brown Ditch carry?

About 119 vehicles per day (2012 count), of which roughly 2% are trucks.

How long is Mississippi Street over Brown Ditch?

The structure is 46 ft (14.1 m) long with a longest span of 43 ft (13.1 m) and a deck 20 ft wide.

Who owns Mississippi Street over Brown Ditch?

It is owned by the County Highway Agency.