US Bridges

FAP 756 (bridge ST over Sangamon River

Good

Piatt County, Illinois · W Edge of Monticello · Structure no. 074002100000000

Built
1950
75 years old, rebuilt 1995
Condition
Good
inspected November 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
531 ft
6 main spans
Daily traffic
5,150
2020 count
Owner
State
State Highway Agency

About this bridge

FAP 756 (bridge ST over Sangamon River is a steel continuous stringer/multi-beam or girder carrying FAP 756 (bridge ST over Sangamon River in Piatt County, Illinois. It was built in 1950 and reconstructed in 1995, so it is 75 years old, older 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 5,150 vehicles a day, roughly 8% of them trucks, projected to reach 5,202 by 2046. The structure is 531 ft (161.8 m) long and 39 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesFAP 756 (bridge ST
CrossesSangamon River
LocationW Edge of Monticello
CountyPiatt County
StateIllinois
Coordinates40.03096, -88.58842
Functional classUrban Other Principal Arterial

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 protection8 Very GoodNo problems noted.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
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 rating67.1 US tons
Inventory rating40.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20
Structure length531 ft (161.8 m)
Longest span101 ft (30.8 m)
Deck width39 ft (11.9 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,150 (2020)
Projected traffic5,202 by 2046
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes

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 FAP 756 (bridge ST over Sangamon River built?

It was built in 1950, making it 75 years old in 2025. It was reconstructed in 1995.

What condition is FAP 756 (bridge ST over Sangamon River 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 November 2024.

How much traffic does FAP 756 (bridge ST over Sangamon River carry?

About 5,150 vehicles per day (2020 count), of which roughly 8% are trucks.

How long is FAP 756 (bridge ST over Sangamon River?

The structure is 531 ft (161.8 m) long with a longest span of 101 ft (30.8 m) and a deck 39 ft wide.

Who owns FAP 756 (bridge ST over Sangamon River?

It is owned by the State Highway Agency.