US Bridges

CR 300N over Twelve Mile Creek

Fair

Cass County, Indiana · 00.20 W of CR 825 E · Structure no. 0900079

Built
1997
28 years old
Condition
Fair
inspected June 2023
Type
Slab
Wood or Timber
Length
64 ft
3 main spans
Daily traffic
240
2023 count
Owner
County
County Highway Agency

About this bridge

CR 300N over Twelve Mile Creek is a wood or timber slab carrying CR 300N over Twelve Mile Creek in Cass County, Indiana. It was built in 1997, so it is 28 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 240 vehicles a day, roughly 3% of them trucks, projected to reach 320 by 2043. The structure is 64 ft (19.5 m) long and 25 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesCR 300N
CrossesTwelve Mile Creek
Location00.20 W of CR 825 E
RouteCounty Highway 76
CountyCass County
StateIndiana
Coordinates40.8086, -86.22275
Functional classRural Minor 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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating40.7 US tons
Inventory rating31.7 US tons

Structure

Structure typeSlab
MaterialWood or Timber
DeckWood or timber
Main spans3
Design loadHS 20
Structure length64 ft (19.5 m)
Longest span32 ft (9.7 m)
Deck width25 ft (7.7 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic240 (2023)
Projected traffic320 by 2043
Trucks3%
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was CR 300N over Twelve Mile Creek built?

It was built in 1997, making it 28 years old in 2025.

What condition is CR 300N over Twelve Mile 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 June 2023.

How much traffic does CR 300N over Twelve Mile Creek carry?

About 240 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is CR 300N over Twelve Mile Creek?

The structure is 64 ft (19.5 m) long with a longest span of 32 ft (9.7 m) and a deck 25 ft wide.

Who owns CR 300N over Twelve Mile Creek?

It is owned by the County Highway Agency.