US Bridges

CR 350W over Spring Creek

Good

Boone County, Indiana · 00.10 N of SR 47 · Structure no. 0600021

Built
1986
39 years old
Condition
Good
inspected September 2023
Type
Slab
Concrete Continuous
Length
107 ft
3 main spans
Daily traffic
170
2017 count
Owner
County
County Highway Agency

About this bridge

CR 350W over Spring Creek is a concrete continuous slab carrying CR 350W over Spring Creek in Boone County, Indiana. It was built in 1986, so it is 39 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 170 vehicles a day, roughly 5% of them trucks, projected to reach 260 by 2037. The structure is 107 ft (32.7 m) long and 43 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesCR 350W
CrossesSpring Creek
Location00.10 N of SR 47
RouteCounty Highway 350
CountyBoone County
StateIndiana
Coordinates40.12797, -86.5342
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 inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating52.1 US tons
Inventory rating40 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length107 ft (32.7 m)
Longest span40 ft (12.1 m)
Deck width43 ft (13.1 m)
Roadway width40 ft (12.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic170 (2017)
Projected traffic260 by 2037
Trucks5%
Lanes on structure2
Traffic directionTwo-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 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 350W over Spring Creek built?

It was built in 1986, making it 39 years old in 2025.

What condition is CR 350W over Spring Creek 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 September 2023.

How much traffic does CR 350W over Spring Creek carry?

About 170 vehicles per day (2017 count), of which roughly 5% are trucks.

How long is CR 350W over Spring Creek?

The structure is 107 ft (32.7 m) long with a longest span of 40 ft (12.1 m) and a deck 43 ft wide.

Who owns CR 350W over Spring Creek?

It is owned by the County Highway Agency.