US Bridges

Il 34 over Gassaway Branch

Good

Saline County, Illinois · Galatia · Structure no. 083006900000000

Built
2019
6 years old
Condition
Good
inspected November 2021
Type
Slab
Concrete Continuous
Length
114 ft
3 main spans
Daily traffic
2,750
2023 count
Owner
State
State Highway Agency

About this bridge

Il 34 over Gassaway Branch is a concrete continuous slab carrying Il 34 over Gassaway Branch in Saline County, Illinois. It was built in 2019, so it is 6 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 2,750 vehicles a day, roughly 12% of them trucks, projected to reach 3,131 by 2046. The structure is 114 ft (34.6 m) long and 39 ft wide. If it were closed, the detour would be 44.1 mi (71 km).

Location

Open in Google Maps
CarriesIl 34
CrossesGassaway Branch
LocationGalatia
RouteState Highway 34
CountySaline County
StateIllinois
Coordinates37.84101, -88.61777
Functional classRural Minor Arterial

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating55 US tons
Inventory rating39.2 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 25 or greater
Structure length114 ft (34.6 m)
Longest span41 ft (12.6 m)
Deck width39 ft (11.9 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,750 (2023)
Projected traffic3,131 by 2046
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed44.1 mi (71 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 Il 34 over Gassaway Branch built?

It was built in 2019, making it 6 years old in 2025.

What condition is Il 34 over Gassaway 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 November 2021.

How much traffic does Il 34 over Gassaway Branch carry?

About 2,750 vehicles per day (2023 count), of which roughly 12% are trucks.

How long is Il 34 over Gassaway Branch?

The structure is 114 ft (34.6 m) long with a longest span of 41 ft (12.6 m) and a deck 39 ft wide.

Who owns Il 34 over Gassaway Branch?

It is owned by the State Highway Agency.