US Bridges

CR 100S over North Fork Big Graham Ck

Poor

Ripley County, Indiana · 00.35 E of Old Michigan R · Structure no. 6900037

Built
1900
125 years old
Condition
Poor
inspected October 2024
Type
Culvert
Masonry
Length
38 ft
1 main span
Daily traffic
150
2022 count
Owner
County
County Highway Agency

About this bridge

CR 100S over North Fork Big Graham Ck is a masonry culvert carrying CR 100S over North Fork Big Graham Ck in Ripley County, Indiana. It was built in 1900, so it is 125 years old, older 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 150 vehicles a day, roughly 4% of them trucks, projected to reach 200 by 2042. The structure is 38 ft (11.6 m) long and 20 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesCR 100S
CrossesNorth Fork Big Graham Ck
Location00.35 E of Old Michigan R
RouteCounty Highway 259
CountyRipley County
StateIndiana
Coordinates39.06046, -85.34437
Functional classRural Local

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
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionOctober 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
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 rating35.9 US tons
Inventory rating24.9 US tons

Structure

Structure typeCulvert
MaterialMasonry
DeckNot applicable
Main spans1
Design loadUnknown
Structure length38 ft (11.6 m)
Longest span30 ft (9.2 m)
Deck width20 ft (6.1 m)
Roadway width16 ft (4.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic150 (2022)
Projected traffic200 by 2042
Trucks4%
Lanes on structure1
Traffic directionOne-lane bridge for two-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 statusEligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$50,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was CR 100S over North Fork Big Graham Ck built?

It was built in 1900, making it 125 years old in 2025.

What condition is CR 100S over North Fork Big Graham Ck 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 October 2024.

How much traffic does CR 100S over North Fork Big Graham Ck carry?

About 150 vehicles per day (2022 count), of which roughly 4% are trucks.

How long is CR 100S over North Fork Big Graham Ck?

The structure is 38 ft (11.6 m) long with a longest span of 30 ft (9.2 m) and a deck 20 ft wide.

Who owns CR 100S over North Fork Big Graham Ck?

It is owned by the County Highway Agency.