US Bridges

Johnson Road over Branch of Trail Creek

Good

LaPorte County, Indiana · 00.10 N US 20 · Structure no. 4600172

Built
1998
27 years old
Condition
Good
inspected September 2024
Type
Culvert
Concrete
Length
29 ft
2 main spans
Daily traffic
6,775
2022 count
Owner
County
County Highway Agency

About this bridge

Johnson Road over Branch of Trail Creek is a concrete culvert carrying Johnson Road over Branch of Trail Creek in LaPorte County, Indiana. It was built in 1998, so it is 27 years old, younger than the Indiana average of 46.6 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 6,775 vehicles a day, roughly 10% of them trucks, projected to reach 11,825 by 2042. The structure is 29 ft (8.8 m) long and 78 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

CarriesJohnson Road
CrossesBranch of Trail Creek
Location00.10 N US 20
RouteCity Street 0
StateIndiana
Coordinates41.68786, -86.84944
Functional classUrban Collector

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 protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than 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 rating35.9 US tons
Inventory rating35.9 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length29 ft (8.8 m)
Longest span12 ft (3.7 m)
Deck width78 ft (23.7 m)
Roadway width35 ft (10.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,775 (2022)
Projected traffic11,825 by 2042
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed2.5 mi (4 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 Johnson Road over Branch of Trail Creek built?

It was built in 1998, making it 27 years old in 2025.

What condition is Johnson Road over Branch of Trail 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 September 2024.

How much traffic does Johnson Road over Branch of Trail Creek carry?

About 6,775 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is Johnson Road over Branch of Trail Creek?

The structure is 29 ft (8.8 m) long with a longest span of 12 ft (3.7 m) and a deck 78 ft wide.

Who owns Johnson Road over Branch of Trail Creek?

It is owned by the County Highway Agency.