US Bridges

CR 900N over Armentrout Dredge Ditch

Good

Montgomery County, Indiana · 00.70 W of CR 350 E · Structure no. 5400169

Built
2003
22 years old
Condition
Good
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
42 ft
1 main span
Daily traffic
100
2024 count
Owner
County
County Highway Agency

About this bridge

CR 900N over Armentrout Dredge Ditch is a steel stringer/multi-beam or girder carrying CR 900N over Armentrout Dredge Ditch in Montgomery County, Indiana. It was built in 2003, so it is 22 years old, younger than the Indiana average of 46.6 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 100 vehicles a day, roughly 5% of them trucks, projected to reach 150 by 2044. The structure is 42 ft (12.8 m) long and 24 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesCR 900N
CrossesArmentrout Dredge Ditch
Location00.70 W of CR 350 E
RouteCounty Highway 76
CountyMontgomery County
StateIndiana
Coordinates40.17149, -86.85182
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating100 US tons
Inventory rating65.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckCorrugated steel
Main spans1
Design loadUnknown
Structure length42 ft (12.8 m)
Longest span40 ft (12.1 m)
Deck width24 ft (7.4 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2024)
Projected traffic150 by 2044
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$155,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was CR 900N over Armentrout Dredge Ditch built?

It was built in 2003, making it 22 years old in 2025.

What condition is CR 900N over Armentrout Dredge Ditch in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in April 2024.

How much traffic does CR 900N over Armentrout Dredge Ditch carry?

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

How long is CR 900N over Armentrout Dredge Ditch?

The structure is 42 ft (12.8 m) long with a longest span of 40 ft (12.1 m) and a deck 24 ft wide.

Who owns CR 900N over Armentrout Dredge Ditch?

It is owned by the County Highway Agency.