US Bridges

Ch 10/FAS 782 over Spring Branch

Fair

Bond County, Illinois · 3.75M N Keysport · Structure no. 003301600000000

Built
1954
71 years old
Condition
Fair
inspected January 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
95 ft
3 main spans
Daily traffic
350
2020 count
Owner
County
County Highway Agency

About this bridge

Ch 10/FAS 782 over Spring Branch is a steel continuous stringer/multi-beam or girder carrying Ch 10/FAS 782 over Spring Branch in Bond County, Illinois. It was built in 1954, so it is 71 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 350 vehicles a day, roughly 9% of them trucks, projected to reach 354 by 2046. The structure is 95 ft (29 m) long and 26 ft wide. If it were closed, the detour would be 11.2 mi (18 km).

Location

Open in Google Maps
CarriesCh 10/FAS 782
CrossesSpring Branch
Location3.75M N Keysport
RouteCounty Highway 0
CountyBond County
StateIllinois
Coordinates38.79746, -89.27347
Functional classRural Major Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating51 US tons
Inventory rating30.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length95 ft (29 m)
Longest span35 ft (10.7 m)
Deck width26 ft (8 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic350 (2020)
Projected traffic354 by 2046
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.2 mi (18 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 10/FAS 782 over Spring Branch built?

It was built in 1954, making it 71 years old in 2025.

What condition is Ch 10/FAS 782 over Spring Branch 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 2024.

How much traffic does Ch 10/FAS 782 over Spring Branch carry?

About 350 vehicles per day (2020 count), of which roughly 9% are trucks.

How long is Ch 10/FAS 782 over Spring Branch?

The structure is 95 ft (29 m) long with a longest span of 35 ft (10.7 m) and a deck 26 ft wide.

Who owns Ch 10/FAS 782 over Spring Branch?

It is owned by the County Highway Agency.