US Bridges

Old Il 121 over Brainards Branch

Good

Logan County, Illinois · .7M N BL55 NW Lincln · Structure no. 054203500000000

Built
1998
27 years old
Condition
Good
inspected October 2024
Type
Culvert
Concrete Continuous
Length
39 ft
2 main spans
Daily traffic
1,250
2022 count
Owner
State
State Highway Agency

About this bridge

Old Il 121 over Brainards Branch is a concrete continuous culvert carrying Old Il 121 over Brainards Branch in Logan County, Illinois. It was built in 1998, so it is 27 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 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 1,250 vehicles a day, roughly 13% of them trucks, projected to reach 1,260 by 2046. The structure is 39 ft (11.8 m) long. If it were closed, the detour would be 3.1 mi (5 km).

CarriesOld Il 121
CrossesBrainards Branch
Location.7M N BL55 NW Lincln
Coordinates40.16483, -89.38697
Functional classUrban Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66.8 US tons
Inventory rating40 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20
Structure length39 ft (11.8 m)
Longest span17 ft (5.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,250 (2022)
Projected traffic1,260 by 2046
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 Old Il 121 over Brainards Branch built?

It was built in 1998, making it 27 years old in 2025.

What condition is Old Il 121 over Brainards Branch 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 October 2024.

How much traffic does Old Il 121 over Brainards Branch carry?

About 1,250 vehicles per day (2022 count), of which roughly 13% are trucks.

How long is Old Il 121 over Brainards Branch?

The structure is 39 ft (11.8 m) long with a longest span of 17 ft (5.3 m).

Who owns Old Il 121 over Brainards Branch?

It is owned by the State Highway Agency.