US Bridges

South Elm RD over Deep Outlet Main

Poor

Marshall County, Indiana · 00.40 S of E 18 B RD · Structure no. 5000102

Built
1964
61 years old
Condition
Poor
inspected October 2024
Type
Slab
Concrete Continuous
Length
64 ft
3 main spans
Daily traffic
100
2024 count
Owner
County
County Highway Agency

About this bridge

South Elm RD over Deep Outlet Main is a concrete continuous slab carrying South Elm RD over Deep Outlet Main in Marshall County, Indiana. It was built in 1964, so it is 61 years old, older than the Indiana average of 46.6 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 100 vehicles a day, roughly 5% of them trucks, projected to reach 150 by 2042. The structure is 64 ft (19.6 m) long and 26 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesSouth Elm RD
CrossesDeep Outlet Main
Location00.40 S of E 18 B RD
RouteCounty Highway 157
StateIndiana
Coordinates41.20301, -86.13442
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating35.9 US tons
Inventory rating35.9 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length64 ft (19.6 m)
Longest span21 ft (6.4 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2024)
Projected traffic150 by 2042
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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$1.8 million (2023 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was South Elm RD over Deep Outlet Main built?

It was built in 1964, making it 61 years old in 2025.

What condition is South Elm RD over Deep Outlet Main in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in October 2024.

How much traffic does South Elm RD over Deep Outlet Main carry?

About 100 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is South Elm RD over Deep Outlet Main?

The structure is 64 ft (19.6 m) long with a longest span of 21 ft (6.4 m) and a deck 26 ft wide.

Who owns South Elm RD over Deep Outlet Main?

It is owned by the County Highway Agency.