US Bridges

SR 3 over Mill Race

Fair

LaGrange County, Indiana · 02.98 N US 20 · Structure no. 001400

Built
1993
32 years old
Condition
Fair
inspected May 2024
Type
Slab
Concrete
Length
32 ft
1 main span
Daily traffic
1,420
2021 count
Owner
State
State Highway Agency

About this bridge

SR 3 over Mill Race is a concrete slab carrying SR 3 over Mill Race in LaGrange County, Indiana. It was built in 1993, so it is 32 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 1,420 vehicles a day, roughly 20% of them trucks, projected to reach 2,685 by 2032. The structure is 32 ft (9.7 m) long and 41 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesSR 3
CrossesMill Race
Location02.98 N US 20
RouteState Highway 3
CountyLaGrange County
StateIndiana
Coordinates41.68395, -85.27964
Functional classRural Major 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating42.5 US tons
Inventory rating32.5 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length32 ft (9.7 m)
Longest span28 ft (8.5 m)
Deck width41 ft (12.6 m)
Roadway width38 ft (11.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,420 (2021)
Projected traffic2,685 by 2032
Trucks20%
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

OwnerState Highway Agency
Maintained byState 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 SR 3 over Mill Race built?

It was built in 1993, making it 32 years old in 2025.

What condition is SR 3 over Mill Race 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 May 2024.

How much traffic does SR 3 over Mill Race carry?

About 1,420 vehicles per day (2021 count), of which roughly 20% are trucks.

How long is SR 3 over Mill Race?

The structure is 32 ft (9.7 m) long with a longest span of 28 ft (8.5 m) and a deck 41 ft wide.

Who owns SR 3 over Mill Race?

It is owned by the State Highway Agency.