US Bridges

US 150(FAS 1518) over Sangamon River

Fair

Champaign County, Illinois · E Edge of Mahomet · Structure no. 010023500000000

Built
1980
45 years old
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
459 ft
5 main spans
Daily traffic
9,800
2023 count
Owner
State
State Highway Agency

About this bridge

US 150(FAS 1518) over Sangamon River is a prestressed concrete stringer/multi-beam or girder carrying US 150(FAS 1518) over Sangamon River in Champaign County, Illinois. It was built in 1980, so it is 45 years old, younger 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 5 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 9,800 vehicles a day, roughly 8% of them trucks, projected to reach 10,201 by 2046. The structure is 459 ft (139.9 m) long and 34 ft wide.

Location

Open in Google Maps
CarriesUS 150(FAS 1518)
CrossesSangamon River
LocationE Edge of Mahomet
RouteU.S. Route 150
CountyChampaign County
StateIllinois
Coordinates40.19169, -88.40006
Functional classUrban 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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating72.1 US tons
Inventory rating40.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length459 ft (139.9 m)
Longest span98 ft (30 m)
Deck width34 ft (10.4 m)
Roadway width31 ft (9.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,800 (2023)
Projected traffic10,201 by 2046
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 US 150(FAS 1518) over Sangamon River built?

It was built in 1980, making it 45 years old in 2025.

What condition is US 150(FAS 1518) over Sangamon River 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 August 2023.

How much traffic does US 150(FAS 1518) over Sangamon River carry?

About 9,800 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is US 150(FAS 1518) over Sangamon River?

The structure is 459 ft (139.9 m) long with a longest span of 98 ft (30 m) and a deck 34 ft wide.

Who owns US 150(FAS 1518) over Sangamon River?

It is owned by the State Highway Agency.