US Bridges

Elm RD over Grimes Ditch

Poor

St. Joseph County, Indiana · 00.10 S of Madison RD · Structure no. 7100026

Built
1979
46 years old
Condition
Poor
inspected September 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
46 ft
1 main span
Daily traffic
1,207
2021 count
Owner
County
County Highway Agency

About this bridge

Elm RD over Grimes Ditch is a prestressed concrete box beam or girders - multiple carrying Elm RD over Grimes Ditch in St. Joseph County, Indiana. It was built in 1979, so it is 46 years old, younger 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 1,207 vehicles a day, roughly 11% of them trucks, projected to reach 1,794 by 2041. The structure is 46 ft (14 m) long and 28 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesElm RD
CrossesGrimes Ditch
Location00.10 S of Madison RD
RouteCounty Highway 0
StateIndiana
Coordinates41.57847, -86.13789
Functional classRural Minor Collector

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 inspectionSeptember 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
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 rating54.3 US tons
Inventory rating32.5 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length46 ft (14 m)
Longest span39 ft (11.8 m)
Deck width28 ft (8.5 m)
Roadway width26 ft (8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,207 (2021)
Projected traffic1,794 by 2041
Trucks11%
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$1.5 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Elm RD over Grimes Ditch built?

It was built in 1979, making it 46 years old in 2025.

What condition is Elm RD over Grimes Ditch 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 September 2024.

How much traffic does Elm RD over Grimes Ditch carry?

About 1,207 vehicles per day (2021 count), of which roughly 11% are trucks.

How long is Elm RD over Grimes Ditch?

The structure is 46 ft (14 m) long with a longest span of 39 ft (11.8 m) and a deck 28 ft wide.

Who owns Elm RD over Grimes Ditch?

It is owned by the County Highway Agency.