US Bridges

SR 427 over Cedar Creek

Fair

DeKalb County, Indiana · 00.31 N US 6 · Structure no. 032520

Built
1935
90 years old, rebuilt 1985
Condition
Fair
inspected June 2024
Type
Arch - Deck
Concrete
Length
62 ft
1 main span
Daily traffic
4,184
2021 count
Owner
State
State Highway Agency

About this bridge

SR 427 over Cedar Creek is a concrete arch - deck carrying SR 427 over Cedar Creek in DeKalb County, Indiana. It was built in 1935 and reconstructed in 1985, so it is 90 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 4,184 vehicles a day, roughly 10% of them trucks, projected to reach 4,000 by 2034. The structure is 62 ft (18.8 m) long and 49 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesSR 427
CrossesCedar Creek
Location00.31 N US 6
RouteState Highway 427
CountyDeKalb County
StateIndiana
Coordinates41.43734, -85.01755
Functional classRural Major 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
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2024
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 rating57.9 US tons
Inventory rating49.6 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckNot applicable
Main spans1
Design loadH 20
Structure length62 ft (18.8 m)
Longest span50 ft (15.2 m)
Deck width49 ft (14.9 m)
Roadway width36 ft (10.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,184 (2021)
Projected traffic4,000 by 2034
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 SR 427 over Cedar Creek built?

It was built in 1935, making it 90 years old in 2025. It was reconstructed in 1985.

What condition is SR 427 over Cedar 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 2024.

How much traffic does SR 427 over Cedar Creek carry?

About 4,184 vehicles per day (2021 count), of which roughly 10% are trucks.

How long is SR 427 over Cedar Creek?

The structure is 62 ft (18.8 m) long with a longest span of 50 ft (15.2 m) and a deck 49 ft wide.

Who owns SR 427 over Cedar Creek?

It is owned by the State Highway Agency.