US Bridges

34th Ave over Stream & Parking Rmp

Fair

Rock Island County, Illinois · Blackhawk Campus · Structure no. 081605000000000

Built
1967
58 years old, rebuilt 2007
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
292 ft
3 main spans
Daily traffic
3,250
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

34th Ave over Stream & Parking Rmp is a steel stringer/multi-beam or girder carrying 34th Ave over Stream & Parking Rmp in Rock Island County, Illinois. It was built in 1967 and reconstructed in 2007, so it is 58 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 3,250 vehicles a day, roughly 2% of them trucks, projected to reach 3,283 by 2046. The structure is 292 ft (88.9 m) long and 52 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Carries34th Ave
CrossesStream & Parking Rmp
LocationBlackhawk Campus
Coordinates41.4783, -90.46124
Functional classUrban 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.3 US tons
Inventory rating35.7 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length292 ft (88.9 m)
Longest span115 ft (35.1 m)
Deck width52 ft (15.8 m)
Roadway width43 ft (13.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,250 (2020)
Projected traffic3,283 by 2046
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 34th Ave over Stream & Parking Rmp built?

It was built in 1967, making it 58 years old in 2025. It was reconstructed in 2007.

What condition is 34th Ave over Stream & Parking Rmp 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 October 2024.

How much traffic does 34th Ave over Stream & Parking Rmp carry?

About 3,250 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is 34th Ave over Stream & Parking Rmp?

The structure is 292 ft (88.9 m) long with a longest span of 115 ft (35.1 m) and a deck 52 ft wide.

Who owns 34th Ave over Stream & Parking Rmp?

It is owned by the City or Municipal Highway Agency.