US Bridges

CH-15 over Little Spring CR

Good

Sangamon County, Illinois · 2 M NW Curran · Structure no. 084340700000000

Built
2008
17 years old
Condition
Good
inspected March 2022
Type
Stringer/Multi-beam or Girder
Steel
Length
73 ft
1 main span
Daily traffic
1,300
2022 count
Owner
County
County Highway Agency

About this bridge

CH-15 over Little Spring CR is a steel stringer/multi-beam or girder carrying CH-15 over Little Spring CR in Sangamon County, Illinois. It was built in 2008, so it is 17 years old, younger than the Illinois average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,300 vehicles a day, roughly 7% of them trucks, projected to reach 1,162 by 2046. The structure is 73 ft (22.2 m) long and 40 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesCH-15
CrossesLittle Spring CR
Location2 M NW Curran
RouteCounty Highway 0
CountySangamon County
StateIllinois
Coordinates39.76905, -89.8003
Functional classRural Major Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMarch 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length73 ft (22.2 m)
Longest span70 ft (21.3 m)
Deck width40 ft (12.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,300 (2022)
Projected traffic1,162 by 2046
Trucks7%
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 CH-15 over Little Spring CR built?

It was built in 2008, making it 17 years old in 2025.

What condition is CH-15 over Little Spring CR 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 March 2022.

How much traffic does CH-15 over Little Spring CR carry?

About 1,300 vehicles per day (2022 count), of which roughly 7% are trucks.

How long is CH-15 over Little Spring CR?

The structure is 73 ft (22.2 m) long with a longest span of 70 ft (21.3 m) and a deck 40 ft wide.

Who owns CH-15 over Little Spring CR?

It is owned by the County Highway Agency.