US Bridges

Il 104 over Brush Creek

Fair

Sangamon County, Illinois · 0.90 MI E I-55 · Structure no. 084006500000000

Built
1962
63 years old, rebuilt 2000
Condition
Fair
inspected January 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
147 ft
3 main spans
Daily traffic
5,450
2023 count
Owner
State
State Highway Agency

About this bridge

Il 104 over Brush Creek is a prestressed concrete continuous stringer/multi-beam or girder carrying Il 104 over Brush Creek in Sangamon County, Illinois. It was built in 1962 and reconstructed in 2000, so it is 63 years old, older than the Illinois average of 45.3 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 5,450 vehicles a day, roughly 9% of them trucks, projected to reach 4,899 by 2046. The structure is 147 ft (44.7 m) long and 43 ft wide. If it were closed, the detour would be 19.3 mi (31 km).

Location

Open in Google Maps
CarriesIl 104
CrossesBrush Creek
Location0.90 MI E I-55
RouteState Highway 104
CountySangamon County
StateIllinois
Coordinates39.59042, -89.63001
Functional classRural Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating76.8 US tons
Inventory rating46.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length147 ft (44.7 m)
Longest span47 ft (14.4 m)
Deck width43 ft (13.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,450 (2023)
Projected traffic4,899 by 2046
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed19.3 mi (31 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 proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$477,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Il 104 over Brush Creek built?

It was built in 1962, making it 63 years old in 2025. It was reconstructed in 2000.

What condition is Il 104 over Brush 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 January 2023.

How much traffic does Il 104 over Brush Creek carry?

About 5,450 vehicles per day (2023 count), of which roughly 9% are trucks.

How long is Il 104 over Brush Creek?

The structure is 147 ft (44.7 m) long with a longest span of 47 ft (14.4 m) and a deck 43 ft wide.

Who owns Il 104 over Brush Creek?

It is owned by the State Highway Agency.