US Bridges

CR 100 North over Loon Creek

Fair

Huntington County, Indiana · 0.6 MI W of CR 500 W · Structure no. 3500087

Built
1964
61 years old
Condition
Fair
inspected September 2023
Type
Slab
Concrete Continuous
Length
82 ft
3 main spans
Daily traffic
131
2021 count
Owner
County
County Highway Agency

About this bridge

CR 100 North over Loon Creek is a concrete continuous slab carrying CR 100 North over Loon Creek in Huntington 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 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 131 vehicles a day, roughly 3% of them trucks, projected to reach 210 by 2041. The structure is 82 ft (24.9 m) long and 24 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesCR 100 North
CrossesLoon Creek
Location0.6 MI W of CR 500 W
RouteCounty Highway 46
StateIndiana
Coordinates40.84369, -85.55241
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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
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 rating35.9 US tons
Inventory rating35.9 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length82 ft (24.9 m)
Longest span32 ft (9.7 m)
Deck width24 ft (7.3 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic131 (2021)
Projected traffic210 by 2041
Trucks3%
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was CR 100 North over Loon Creek built?

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

What condition is CR 100 North over Loon Creek 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 September 2023.

How much traffic does CR 100 North over Loon Creek carry?

About 131 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is CR 100 North over Loon Creek?

The structure is 82 ft (24.9 m) long with a longest span of 32 ft (9.7 m) and a deck 24 ft wide.

Who owns CR 100 North over Loon Creek?

It is owned by the County Highway Agency.