US Bridges

SR 3006 over Mill Race

Poor

Centre County, Pennsylvania · Bellefonte · Structure no. 000000000009705

Built
1905
120 years old
Condition
Poor
inspected April 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
40 ft
2 main spans
Daily traffic
2,031
2024 count
Owner
State
State Highway Agency

About this bridge

SR 3006 over Mill Race is a steel stringer/multi-beam or girder carrying SR 3006 over Mill Race in Centre County, Pennsylvania. It was built in 1905, so it is 120 years old, older than the Pennsylvania average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 2,031 vehicles a day, roughly 6% of them trucks, projected to reach 2,114 by 2043. The structure is 40 ft (12.2 m) long and 76 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesSR 3006
CrossesMill Race
LocationBellefonte
RouteState Highway 0
CountyCentre County
StatePennsylvania
Coordinates40.91162, -77.78147
Functional classUrban Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.9 US tons
Inventory rating37 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckOther
Main spans2
Design loadUnknown
Structure length40 ft (12.2 m)
Longest span18 ft (5.5 m)
Deck width76 ft (23.2 m)
Roadway width50 ft (15.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,031 (2024)
Projected traffic2,114 by 2043
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRelief for waterway
Detour if closed1.2 mi (2 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$890,000
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 3006 over Mill Race built?

It was built in 1905, making it 120 years old in 2025.

What condition is SR 3006 over Mill Race in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in April 2023.

How much traffic does SR 3006 over Mill Race carry?

About 2,031 vehicles per day (2024 count), of which roughly 6% are trucks.

How long is SR 3006 over Mill Race?

The structure is 40 ft (12.2 m) long with a longest span of 18 ft (5.5 m) and a deck 76 ft wide.

Who owns SR 3006 over Mill Race?

It is owned by the State Highway Agency.