US Bridges

CR 100S over Big Blue River

Fair

Henry County, Indiana · 00.60 E of CR 125 W · Structure no. 3300080

Built
1981
44 years old
Condition
Fair
inspected August 2023
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete Continuous
Length
219 ft
3 main spans
Daily traffic
1,668
2021 count
Owner
County
County Highway Agency

About this bridge

CR 100S over Big Blue River is a prestressed concrete continuous box beam or girders - single or spread carrying CR 100S over Big Blue River in Henry County, Indiana. It was built in 1981, so it is 44 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 1,668 vehicles a day, roughly 10% of them trucks, projected to reach 2,966 by 2041. The structure is 219 ft (66.8 m) long and 34 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

Location

Open in Google Maps
CarriesCR 100S
CrossesBig Blue River
Location00.60 E of CR 125 W
RouteCity Street 36
CountyHenry County
StateIndiana
Coordinates39.91701, -85.39603
Functional classUrban 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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44 US tons
Inventory rating34 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length219 ft (66.8 m)
Longest span73 ft (22.2 m)
Deck width34 ft (10.5 m)
Roadway width32 ft (9.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,668 (2021)
Projected traffic2,966 by 2041
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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$20,000 (2023 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was CR 100S over Big Blue River built?

It was built in 1981, making it 44 years old in 2025.

What condition is CR 100S over Big Blue River 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 August 2023.

How much traffic does CR 100S over Big Blue River carry?

About 1,668 vehicles per day (2021 count), of which roughly 10% are trucks.

How long is CR 100S over Big Blue River?

The structure is 219 ft (66.8 m) long with a longest span of 73 ft (22.2 m) and a deck 34 ft wide.

Who owns CR 100S over Big Blue River?

It is owned by the County Highway Agency.